Essay about Operations Management McDonalds Competitive...

Table of Contents Executive Summary 2 Introduction 3 About McDonald’s 4 Process of McDonalds 4 Operations management 5 Operations managers 5 Operation strategy of McDonald’s 5 Pricing strategies of McDonalds 6 Innovation at McDonalds to improve operations and services 7 Inventory management 8 The Just-in-Time (JIT) Approach 9 Just- in-Time (JIT) Approach in McDonald’s 9 Advantages and benefits of JIT approach 10 Capacity management 11 Capacity strategies 11 McDonalds capacity strategy 11 Quality management 12 Quality management strategies 12 McDonald’s quality management 12 Reliability 13 Packaging quality 13 Interior design 14 Quality service abilities 14 Employee training 15 Continuous improvement 15 Customer†¦show more content†¦Every restaurant has operations manager who control and maintains all operational activities within the organization which helps to achieve organizational goals. The purpose of the project is to know how operations such as quality, inventory, capacity and lean synchronization are controlled and maintained in fast food sector, especially in McDonalds and how are they implemented. About McDonald’s McDonald’s is a leading global food service retailer with more than 35,000 restaurants serving nearly 70 million people across 100 countries every day. It was found in 1940 and it was the first fast food industry in the world market. It has 1.8 million employees and 80% of the restaurants are franchised. The main revenue of McDonald’s is generated from rent, royalties and fees paid by the franchisees. McDonald’s revenue also includes sales done by the company operated restaurants. In 2012 company had annual revenue of $27.5 billion and profits of $5.5 billion. McDonald’s sells hamburgers, cheeseburgers, and chicken, French fries, breakfast items, soft drinks, milkshakes and desserts. McDonalds headquarter is located in Oak Brook, Illinois, United States America (USA). In 1993 McDonald’s sold more than 100 billion hamburgers. In October 2012 monthly sales of McDonald’s fell for the first time in nine years. McDonald’s has its keen interest in attracting its customers by introducing newShow MoreRelatedMcdonalds Production and Operations Management1038 Words   |  5 PagesMcdonald’s Use of Teams in Production and Operations Management Introduction Strategies are important for all businesses, regardless of the products or services that they offer. Through strategic management and operations, companies are able to integrate new and effective means of running their respective businesses. In turn, these strategies results in an increased profit of sales, stable market position and greater levels of customer loyalty. In the fast food industry, businesses such asRead MoreOperations Management : Mcdonald s Marketing Management1435 Words   |  6 PagesIntroduction 3 About McDonald’s 4 Process of McDonalds 4 Operations management 5 Operations managers 5 Operation strategy of McDonald’s 5 Pricing strategies of McDonald s 6 Innovation at McDonald s to improve operations and services 7 Inventory management 8 The Just-in-Time (JIT) Approach 9 Just- in-Time (JIT) Approach in McDonald’s 9 Advantages and benefits of JIT approach 10 Capacity management 11 Capacity strategies 11 McDonald s capacity strategy 11 Quality management 12 Quality management strategiesRead MoreA Research Project On Mcdonalds Canada1513 Words   |  7 Pagesand value for every customer, every time†. (McDonald’s Canada, 2015). For McDonalds to achieve their mission statement they will have to create some internal strategies to help push for perfection. Strong training is one strategy that McDonald’s uses for overall success. 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McDonald’s is a highly successful and well recognized brand leader of fast food restaurantsRead MoreMcdonalds Case Analysis1362 Words   |  6 Pagesconsists of a wide range of consumers with their new and improved menu that offers the success of the new dollar menu to healthier menu options including moderately priced salads. Teenagers were previously the firm’s primary targeted market; however McDonald’s objective is to target the larger, more profitable family market. McDonalds is distributed globally and known as the world’s largest fast-food restaurant business. The demographic segment has a positive effect on the industry because it has expandedRead MoreLearning Team Assignment Control Mechanisms of Mcdonalds1477 Words   |  6 PagesMechanisms of McDonald’s MGT/330 September 13, 2010 University of Phoenix Control Mechanisms of McDonald’s McDonald’s has become a leading competitor in the fast food industry. They are a household name famous for its signature â€Å"golden arches† and â€Å"supersized† fries. McDonald’s is an international corporation that manages several hundred independently owned stores. To effectively manage this type of corporation, McDonald’s must use several control mechanisms. Below is an analysis of McDonald’s controlRead MoreIn Technical Terms, Strategic Management Is Defined In1573 Words   |  7 PagesIn technical terms, strategic management is defined in the text, Strategic management, and business policy, as a set of managerial decisions and actions that determine the long-run performance of a corporation. Strategic management is considered an evolution primarily because during a company s run they are constantly changing to keep up with new customer demands and its competitors. In a company s evolution phase, they must focus on growth and what it takes to get achieve success. This mayRead MoreStudy The Internal Resources, Capabilities, And Activities Of Firms993 Words   |  4 Pagesidentify that firm’s core competencies and ascertain how that firm is realizing its competitive advantage(s) in the industry through these three factors. This information can then by utilized by the firm itself to continue to build on these competencies and continue to develop them into higher levels of competitive advantage. Other firms can exploit this information to imitate or perfect this company’s advantages for itself. Discussion Question 4.2 Conduct a value chain analysis for McDonald sRead MoreWhat Is Scientific Management? How Might Todays Organization Use It?698 Words   |  3 PagesWhat is scientific management? How might today’s organization use it?Kristine Martin MGT 105.94; Principles of Management Unit 1 Homework Assignment Management leading amp; collaborating in a competitive world (Bateman amp; Snell) Text p. 43 Discussion Questions 2, 4, and 6 2) What is scientific management? How might today’s organization use it? According to (Bateman amp; Snell) scientific management approach advocated the application of scientific methods to analyze work and to determineRead MoreMcdonalds Case Study1616 Words   |  7 Pagesare three generic strategies that a company can use to achieve competitive advantage: Overall Cost Leadership, Differentiation, and Focus (Dess, McNamara, Eisner, 2016). Applying this concept to the McDonald’s case, it is possible to infer that the primary generic strategy adopted by the company is cost leadership (Gregory, 2017). A strategy of Overall Cost Leadership is based on attracting customers using a competitive advantage based on low cost (Dess, McNamara, Eisner, 2016). According to

Retributivism Vs Utilitarian Theory - 1730 Words

The concept of morality and moral â€Å"rules and laws† has as its corollary, the concept of â€Å"rule-breaking† or acting immorally. A common response to immoral behavior is punishments, which leads me to ask the question: how is punishment justified? In his article â€Å"The Classic Debate†, American legal philosopher Joel Feinberg lays out the main points of discourse between the two major theories of justified punishment, which I will deconstruct. Feinberg asserts that there are two main theories used to justify punishment: Retributivism and Utilitarianism. These two theories supposedly oppose each other such that they are mutually exclusive and jointly exhaustive (Feinberg). The latter of these theories, Utilitarianism, is the main concern of this†¦show more content†¦The second thesis of pure moralistic retributivism, that moral guilt is a sufficient condition for punishment, is far more contentious (Feinber 647). One of the common counterargument s to this point which Feinberg notes is similar to the old addage â€Å"two wrongs don’t make a right†. If punishment is justified irrespective of future consequences, and it is assumed that the chosen punishment (i.e. prison time, fine) isn’t itself a good, than how can this negative action be justified if it doesn’t necessarily bring about some goodness? Retributivists often respond by using the example of sadness as a response to suffering. Neither sadness nor suffering are inherently good, but sadness in response to someone else’s suffering is uniquely appropriate (Feinberg 647). In the same way that sadness is the appropriate response to suffering or teachers grade is the appropriate response to a students performance on a test, punishment is the appropriate response to moral guilt on the basis of justice. The concept of â€Å"justice†, the assignment of action on the basis of desert alone, will become imporant later. Another critique r aised by Feinberg relates to the third thesis of pure moralistic retributivism: that punishment must be proportionate to the moral gravity of the offense. This thesis implies a number consequences which are problematic. Firstly, ifShow MoreRelatedCapital Punishment : Deontology Vs. Consequentialism1165 Words   |  5 Pages Capital Punishment: Deontology vs. consequentialism Subject: Analyze the deontological and consequentialist arguments on both sides of the issue of capital punishment in Gregg v Georgia. In this paper I will present the moral arguments of deontology and consequentialism used to determine whether or not using the death penalty was in fact constitutional. I will present both sides of the arguments and present them in the context of this trial and of similar situations where the arguments couldRead MoreTorts study notes Essay17110 Words   |  69 Pagesï » ¿ 75 Tex. L. Rev. 1801 Texas Law Review June, 1997 W. Page Keeton Symposium on Tort Law MIXED THEORIES OF TORT LAW: AFFIRMING BOTH DETERRENCE AND CORRECTIVE JUSTICE Gary T. Schwartza Copyright (c) 1997 Texas Law Review Association; Gary T. Schwartz Introduction Currently there are two major camps of tort scholars. One understands tort liability as an instrument aimed largely at the goal of deterrence, commonly explained within the framework of economics. The other looks at tort law as

The Day That Changed My Life Free Essays

string(100) " even though I was not having any contractions I knew I did not 4 want to give birth in my vehicle\." The Day My Life Changed Forever I will never forget the day when my life was changed forever. I was twenty-two years old and about to give birth to my first child. I was having a girl, who I was going to name Mia Alexandria. We will write a custom essay sample on The Day That Changed My Life or any similar topic only for you Order Now Up until this point in my life I was able to go and come as I pleased, but that was about to all change. I knew that having a child would change my life but did not know how much. It was in December of 1996, and was a cold, dreary winter day. I was in my eighth month of pregnancy and I was crabby about having to lug around extra weight that was in my belly. I awoke early that morning and decided to run some errands. I drove a Jeep Wrangler at that time, a red one with a white hard top that consistently bounced around the road with every bump and crack that you hit. I can still feel the bitter draft that seeped through the cracks as I drove. It was a stick shift, which many of my friends did not know how to operate. Reluctantly, I hopped my pregnant body up into it barely being able to move my limbs from being bundled up in my poufy parka. My friend decided to join me that day to keep me company. Our first stop was to the unemployment agency. The unemployment agency back then was located in several buildings scattered throughout the state so you just had to find the closest 2 one to you, drive to it, fill out some paperwork, and stand in line to file your claim. Things were not done as they are now with all the fancy computer technology. As we arrived in the parking lot I was feeling a little anxious, not having applied before, and not knowing what I was going to say to the person behind the counter. I had been released from my waitressing job a few weeks before because of my pregnancy, the owner was afraid I might slip and fall while I was working and didn’t want to be responsible or even take that chance. The owner said I could come back after I had the baby but in the meantime I wasn’t able to pay December’s rent nor did I have any food in my apartment. My mom said I could come eat any time I wanted at her house and always sent a care package with me when I left, but still that did not pay the rent. Needless to say I did not have very much money for gas to drive back and forth to her house either and we lived about 15 miles apart. I wasn’t sure if I was going to qualify to receive unemployment but I knew I desperately needed to do something because of the baby I had on the way. When we walked into the building I saw a tremendously long line, a take a number sign, rows and rows of chairs with other fellow unemployed citizens, and quite a few government workers behind the counters. The place was huge. The atmosphere felt stuffy to me and the room was predominantly filled with men that displayed gloomy faces. I took a number and my friend and I took our place in line. We were standing for about twenty minutes when all of a sudden I felt this rush of wetness between my thighs. I was not sure what had just happened but I thought to myself I could not have just had an accident like a preschooler. As I mentally assessed the situation, the 3 only thing that kept me running from embarrassment was my long parka that came down past a good portion of my back side so you could not see my midsection. My bladder control was not as it was before I was pregnant; however when I realized after a minute or two that maybe the liquid that was uncontrollably releasing from my body was not urine at all, but that my water had broke, which meant I was going into labor. Being twenty-two and it being my first child I think I may have been in shock. Not knowing what else I should do, I decided to walk up to one of the few ladies I saw in the office. I wanted to ask what I should do because I had already signed in. The lady looked at me in disbelief and said â€Å"Leave, who cares that you signed in. You need to go to the hospital†. My friend and I looked at one another and then quickly scurried out to my Jeep and jumped in. My friend thought she should drive but did not know how to drive a stick-shift. I figured it was probably a much better idea if I drove and assured her I was not in any pain and I was fine to drive. I swiftly sped off not really having the next destination in mind but knowing I had towards the hospital. I was not in pain and did not want to rely on someone else to decide what to bring to the hospital for me so I decided to make a pit stop back at my apartment before heading over to the hospital. When we arrived only twenty minutes or so had passed and I thought by now something else should be happening with my body and was anticipating the worse was about to come. I changed out of my miserably wet pants and I quickly gathered up the things I thought I should bring. We jumped back in my bouncy jeep with our destination being the hospital this time and began making our journey there. We had about a thirty minute drive to Royal Oak Beaumont without traffic and even though I was not having any contractions I knew I did not 4 want to give birth in my vehicle. You read "The Day That Changed My Life" in category "Essay examples" I had heard numerous crazy stories from people throughout my pregnancy about giving birth in weird places and just really wanted to make it to the hospital. When we arrived at Royal Oak Beaumont I entered through the emergency room. The security guard went to get me a wheel chair but I felt that I was fine and decided to walk up to the labor and delivery floor. When I got to the floor the nurses greeted me excitedly and hooked me up to a computer with all this wires that were connected to a stretchy band that fit around my belly. I didn’t know what they were for at the time, but now I know they were to measure my contractions. The nurse checked my dilation status and I was at a four and when you deliver the baby a person’s dilation status is at a ten. The nurse bundled all my belongings in a plastic bag and swiftly rushed me to appropriate room for delivery. When I was walking to my new room the nurses were astonished that I was dilated to four and walking around without feeling any pain. I didn’t have the foggiest idea what was going to happened so it really didn’t faze me. My friend must have been calling every person I knew because people started trickling in to see me. Tons of family and friends rotated in and out of my room baring gifts and helpful encouraging tips. The hospital staff allowed many more people in the room at one time then I thought was allowed. I had been at the hospital for about an hour and a half and still wasn’t feeling any contractions even though the nurse said I was having them. One of my friends had brought a deck of cards and another stopped at the store and brought me candy for my weet tooth I had so we were playing cards and I was eating candy when the doctor showed up. 5 The doctor was a middle age man, probably in his forty’s, which I had never met before. He was the doctor responsible for the patients from the office I went to for my prenatal checkups. I went to the hospital obgyn clinic were the doctors were doing their internships and other senior staff doctors oversaw that they were performing the corre ct way. He told us I probably would not be having the baby for a few hours, it was now about dinner time and I was starting to get hungry. My dilation status had stayed at between four and five for quite some time and he decided to order for me to have pitocin which tricks your body into starting to have contractions so your body will deliver the baby faster. This drug mimics the effects of the hormone, oxytocin that naturally is released in your body to induce labor. My dad and step-mom did not want to miss the birth of my first child but wanted to leave to go get dinner and they were going to bring me something back. They said I could not eat but they were allowing me to eat the candy which was a little strange. Eventually I knew I would want some dinner though and encouraged them to go and come back. Little did my dad or I know that what he feared was about to come true. He kissed me on the head and said â€Å"Don’t have that baby till I get back, ya hear†. I laughed and replied â€Å"Ok†. My dad left and the nurse came in to administer the pitocin. As the medicine flowed through my IV into my vein it felt not quite cold but a cool trickling rush like some little bugs were invading my body. It had only been a few minutes when I could start feeling maybe a little squeezing of my belly that they were calling a contraction. About seven or eight people were standing in my room talking to one another and asking me a bunch of questions when all of a sudden I felt the biggest kick, it felt like someone punched me in the stomach. Then next came a contraction, it was hard 6 And it hurt. I yelled to the nurse â€Å"I think I’m about to have the baby†, she said â€Å"Let me check probably not just yet†. I shouted back â€Å"I think I need something for pain then†. Quickly I was administered some Demerol which was supposed to curve the pain. It just made me feel like I was going to vomit as it rushed through my veins and gave me the biggest high I had ever felt. Again I felt a big contraction â€Å"I want everyone out† I yelled. Everyone scurried out the nurse checked me and I was about to have the baby, she pushed the emergency button and the doctor came running. No one was ready, none of the packages were opened up for the delivery, and no one had their proper labor and delivery gear on. There was no time for any of that I had one more contraction and I was told not to push yet but there was no pushing nor any stopping that baby from coming into this world. Next thing I knew this small watermelon size thing came bounding out and it was over. No more pain, no more scary anticipation, and no more extra weight in my belly. And of course my dad had missed it. Mia Alexandria was here and weighed 5lbs 15oz, and was 19 inches long. My freedom at that moment ended forever. I would always be responsible for this other little person forever, or what would seem forever. No more just getting up and going. No more random journeys in my jeep at the spur of the moment not knowing where we might end up. Everywhere I would go from then on out I would have lots of extra things I would have to take with me for the care of the baby. Even though my life changed at that moment forever it was for the better. The birth of my daughter made me think about all my actions and the consequences that may follow. I always tried my hardest to do the right thing and be the best person I could be from that moment on because I wanted to be the best mommy ever. How to cite The Day That Changed My Life, Essay examples

Editha Essay Example For Students

Editha Essay EDITHAThis story is about a woman named Editha. Editha was engaged to George and told him it was his duty to his country to sign up and go serve in the war. Editha wanted a hero for a husband and she secretly wanted him to go to war so that she would have that hero. After an argument with him she finally convinces him to go. George dies in the war and his mother blames Editha for his death. Editha is in denial and accepts no responsibility for the death of George or the reasons that he chose to go to war in the first place. Editha was engaged to a man named George Gearson. A war had begun and Editha became excited about the concept of having a hero for a husband. Editha, right away started encouraging George to sign up for the war, she believed it was his patriotic duty as an American. George did not believe in war and was raised to be passive. Georges father had lost his arm in the Civil war and his mother did not want him to suffer the same thing. His father and mother together decided to discourage George from going to any war. George and Editha got in a heated argument about the war and their different opinions and he left to go out. George told her he would come back for dinner. At this point Editha considered their relationship over. She did not see how she could continue to love a man who did not love his country as much as she did. When George left, that was it for Editha. She decided that if he could not believe the way she did then he did not deserve her. She sat down and wrote him a letter a nd gathered all the things he had ever given her and put them all in a box. In the letter, she told him that she could not be with a man who was not loyal to his country first of all. She could not be with a man who did not believe the way she did and therefore she was breaking up with him. After thinking it over, Editha decided that she was jumping the gun and that since George said he would think about what she had said, that she would give him a chance to think her way, which she considered the only way. George went out to a bar that night and had a few too many drinks with his friends. After a few drinks he became a little more patriotic and signed up for the war and even encouraged his friends to do the same. His friends even nicknamed him Captain because of his leadership in encouraging them to sign up. George showed up late that night at Edithas house to tell her that he signed up for the war. Editha was very excited but tried not to show it. She did not want him to think that she was the one who pushed him into signing up. Editha just listened to him and encouraged him and told him that he did the right thing. George asked Editha to do one thing when he was getting ready to leave and that was to take care of his mother if anything should happen to him. He told her that his mother would not be happy with him for signing up for the war but that he wanted to make sure she was taken care of if he dies in the war. Editha said she would be more than happy to check on his mother, but that nothing would happen to him. He would come back to her as a hero.Editha handed George the letter that she had written him earlier before she had learned that the had signed up. Editha told him if he ever doubted his decision to sign up he should just read the letter that she had written him and he would know that he had done the right thing. He got on the train, waived goodbye and that was the last time she saw him. .uda63eace7264a0b5e8291cb7b996fc57 , .uda63eace7264a0b5e8291cb7b996fc57 .postImageUrl , .uda63eace7264a0b5e8291cb7b996fc57 .centered-text-area { min-height: 80px; position: relative; } .uda63eace7264a0b5e8291cb7b996fc57 , .uda63eace7264a0b5e8291cb7b996fc57:hover , .uda63eace7264a0b5e8291cb7b996fc57:visited , .uda63eace7264a0b5e8291cb7b996fc57:active { border:0!important; } .uda63eace7264a0b5e8291cb7b996fc57 .clearfix:after { content: ""; display: table; clear: both; } .uda63eace7264a0b5e8291cb7b996fc57 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .uda63eace7264a0b5e8291cb7b996fc57:active , .uda63eace7264a0b5e8291cb7b996fc57:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .uda63eace7264a0b5e8291cb7b996fc57 .centered-text-area { width: 100%; position: relative ; } .uda63eace7264a0b5e8291cb7b996fc57 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .uda63eace7264a0b5e8291cb7b996fc57 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .uda63eace7264a0b5e8291cb7b996fc57 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .uda63eace7264a0b5e8291cb7b996fc57:hover .ctaButton { background-color: #34495E!important; } .uda63eace7264a0b5e8291cb7b996fc57 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .uda63eace7264a0b5e8291cb7b996fc57 .uda63eace7264a0b5e8291cb7b996fc57-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .uda63eace7264a0b5e8291cb7b996fc57:after { content: ""; display: block; clear: both; } READ: Two Kinds By Amy Tan EssayThe first skirmish that his battalion was involved in returned a lot of causalities. George was one of the men on the list that was killed. Editha looked and looked at the list hoping that there might be another Gearson, but everything matched up. Just like she promised, Editha got up out of sick and distraught bed and went to check on Georges mother. Edithas father offered to go with her and they traveled from New York to Iowa to Georges funeral. Georges mother blamed Editha for everything. The letter that Editha had given George had made its way back to the states and into the hands of Georges mother. Now Georges mother blamed her for his death and said that she pushed George to go to war. She said that George would have never gone on his own. This shocked Editha and she did not know what to say. In the end, Editha is having her picture painted and the lady doing the painting is commenting on how Georges mother treated Editha. She remarks that it was cruel of the woman to treat Editha that way after Editha got up out of her sick bed to go all that way to comfort her. Up until this point Editha had been depressed about what Georges mother had said to her and maybe was even questioning whether any of it was true. The remarks this lady said made her feel better and she went back to her old self, with no remorse in what she had said or done to cause the death of George. This story is about human emotions with the war looming heavily in the background. Editha wants George to go to war, but not really because she thinks it is his civic duty as she implies. Editha wants George to go to war because she thinks he should prove himself to her. Editha wants George to go to war for the completion of her idea of him. She feels that she deserves the best and that a war hero would be a nice conversation piece to have dinner parties. Editha does things and says things in a round about way so that George can not tell she is actually doing it. She says things that are implied but not said plainly. This way she gets her point across but does not look like she is just pushing him off to war. Human beings depend on other human beings to give them a sense purpose. Sometimes one needs other people to do or say things to make one feel as if we have been on this earth for a reason. In Edithas case, she needed George to prove to her his sense of purpose and to prove to her that he had a reason to be on this earth. Editha felt like George needed to prove to her that he deserved her. If he could not prove to her that he deserved her then she would just dump him. This writer does not think there could have been love in this relationship on the part of Editha. How could you put such conditions on love. How could one send the person they love of to war just to complete their idea of t hat person. This story was tragic because a man lost his life trying to prove his love for a woman who really only wanted him around as a showpiece. Editha does not realize what love really is and what is saddest of all is poor George died for it.

ART essays

ART essays ART 2D TERM PAPER German Expressionism was a movement that rebelled against the tradition of Realism, both in subject matter and style. It applied to an artistic movement that lead German Avant-Garde painting of the early 20th Century rule. Expressionist painting, which developed in reaction to the dormant academic standards of the previous century, discarded refined pictorial naturalism in favor of direct emotional expression characterized by bold distortions of form and violent color. Surrealism is a term coined by The French poet Guillaume Apollinaire in 1917 in reference to his own writings, as well as the work of certain painters, such as Picasso and Marc Chagall. In 1924, one of the founders, Andre Breton, revived the term in his Manifesto of Surrealism, where he describes a super-reality connecting the dream The movement is mostly concerned with the different aspects of the unconscious mind and representations of the dream state. Max Pechstein, an expressionist painter, born December 31, 1881, died June 29, 1955, was a member of DIE BRUECKE (the bridge) A group of German expressionist painters, active just before WWI, who reacted against the impressionism of the Secession movement. Pechstein shared the bold color and expressionist distortion of the Bruecke artists but in a less extreme and more decorative form than that practiced by the groups His painting called Zwiesprache (Two Voices) painted in 1920 is of two nude females conversing in a landscape. Its condition is unusually fine, with strong, boldly-printed colors. The sheet has only some soft creasing in the margins. The subject matter is most probably sexuality and it incorporates the angular forms of Oceanic and African art. The colors he has used in his woodcut are green, black, brown-beige and white. Color becomes largely autonomous ...

Civic Efficacy essays

Civic Efficacy essays Civic efficacy to me means knowledge about history, geography and cultures of the US and the world. It means knowing the constitution, the legal and political systems and current events. Civic efficacy is about having values and attitudes. It means Developing a reasoned commitment to public values of this society, being able to deal with conflicts, having basic human rights and protecting those rights, Developing reasoned loyalty to this nation , Bonding with other humans, and treating oneself and others with respect. Civic Efficacy also means to study and to have skills in certain things, it means to participate in discussions and group activities, last but not least it means to have intellectual skills. Social understanding is knowledge of social aspects of the human condition, how they have evolved over time, the variations that occur in differing physical environments and cultural settings, and the emerging trends that appear likely to shape the future. Citizens who know this or do this are good and effective citizens. They know about there past they know the difference between right and wrong. They know about the world around them. They arent blind to the things that go on in this day and age. They use past problems to solve future ones so they dont make the same mistakes. Knowing and following civic efficacy and having a social understanding means youre a good citizen in this country. It also means youre a responsible citizen. Every citizen should learn civic efficacy and each citizen should have a social understanding. I volunteered to be a D.A.R.E role model. Basically we met with 5th graders and talked about high school, drugs, and alcohol. I realized its important to teach little kids at a very early age about whats right and wrong and how to be a good citizen. I remember being a little scared before I started talking to the kids, because I knew ...

Contextual analysis Essay Example | Topics and Well Written Essays - 1250 words

Contextual analysis - Essay Example The sound of water saturates the entire film as well as its soundtrack. Incidentally, the delicate sound of bath water that softly drips from a visibly long, wet hair could only be comparable to the waterfalls at Niagara (Gopnik 2). The story winds in and out in a manner likened to the temporal Mobius strip. The film is generally about two women. One woman is relative young and eager whereas the other one is older and reserved. The two women are ostensibly going about their day-to-day routine and activities. Incidentally, the visitor is pondering just in case the two women are really one. Thesis Statement: While the artist has effectively used the audio-video platform to underscore the lives and attributes of two women characters that are at different stages of their lives, I believe that the representation of water is satisfactory evidence to prove that the two women are the same though portrayed in different parts or stages of their lives. The artist has effectively intertwined the lives and daily routines of the two women in a way that suggests their past successfully shaped their present. In the same way, the experience alongside currents of time shaped their past. In essence, remembering is evidently a creative way since it is obviously difficult to recall that past completely (Connors 4). Apart from the theme of water, Tan’s film also reflects the aspects of isolation, dislocation and loss. The double projection employed by the artist display the older woman reminiscing about her youthful life. The film moves back and forth in attempt to show life in the past and present. Commissioned by Vancouver Art gallery, the film simultaneously displays the video recording of flowing water (Connors 4). The flow of water apparently dominates the film and soundtrack thereby giving an impression of the memory flow and time. It is imperative to emphasize that the two women are at different stages of their lives. Figure 1 Figure 2 While the younger woman is still eager and ambitious to accomplish many of her dreams in life, the older one could only recollect the good moments and difficulties of her young life. Life to the young woman is vast with opportunities and aspirations bother in the short term and long term (Piturro 10). The piece demonstrates the kinds of historical, social, cultural relationships that human beings carry within themselves as they progress in life from childhood to adulthood and finally old age. The older woman is reticent, a sign that she perhaps feel content with the various achievements she has made in life. She credibly thinks it is time to reflect on the successes and disappointments of life because the strength and vigor is long gone (Piturro 10). In contrast, the young woman has numerous ambitions she intends to achieve in the near future. Furthermore, she evidently has the power, strength, vigor and determination to realize her dreams. The movie Rise and Fall examines the retrospective gaze along with its rela tionship to several images that people carry that are reflective of their social, cultural and historical dynamism. It is clearly intricate to tell whether the two women in fact represent a single woman at different points in life (Connors 4). What is very logical in the video is that their ages are contrasting. However, Tan lets the viewers acquire adequate account of their daily rituals. For

Case study Essay Example | Topics and Well Written Essays - 1000 words - 35

Case study - Essay Example Among those players, the most notable and renowned name was of the Next Step Herbal Health, which was also regarded as one of the fastest establishing companies in the US by Forbes. She decided to accept the invitation of joining the company for a ‘Get to Know Us session’. While she was leaving to join the session, she conducted some internet research about the company owing to which she was able to know that the company and its operational effectiveness in an efficient manner. However, some of the internet materials also depicted the malpractices of the company within their business operations. She received a warm welcome when reached the company. She interacted with the recruiters and enquired about the reality of the articles she read on the internet about the ethical practical practices of the company. She also attended a small event where the CEO of the company described the mission and vision of the business in precise. Subsequently, she was offered a contract by t he management after which she would need to join an orientation program in the Atlanta office of the company. It is apparent that Ramona was offered employment with an attractive contract by one of the top companies of the US. However, there are certain ethical practices and situations that need to be considered by Ramona while signing the contract with the company. Since Ramona was Christian in terms of religion there are also certain spiritual aspects that must be taken into consideration. Notably, as per some of the stanza in the Bible, ethics is an important part to be practiced by individuals towards ensuring their inner satisfaction. As per a particular excerpt from the Bible, â€Å"You shall not steal; you shall not deal falsely; you shall not lie to one another.† The excerpt primarily means that one should not be involved in stealing or appreciating falsely and must not lie to one another. Contextually, it has been noted from the provided case study that the

Legalization of marijuana Essay Example | Topics and Well Written Essays - 1500 words - 1

Legalization of marijuana - Essay Example Despite the whole debate surrounding support for legalizing it, criticism over the effects or consequences emanating from its use has also been critical in the decision making process. In this regard, the decision of whether to legalize marijuana or not highly depends on the measure of whether there are more advantages or disadvantages of legalizing it. Earleywine (67) argued that although marijuana has medicinal value attached to it, many things have to be put into consideration when making the decision of whether to legalize it or not. Political, social economic and health issues are some of the facets to be considered when making the decision. In light of this, there are different tenets that have to be articulated upon to come up with sound decision. If marijuana is to be legalized, it translates to economic advantage to people that will be farming and retailing it. This is a great accomplishment as it translates to improved lives of the people to be involved in the business. In fact, the government will also have the opportunity of generating revenue from the tax collected from the marijuana business. People involved in the marijuana business will be better placed in taking care of their basic needs and other requirements such as their health, education as well as different development initiatives. In addition, if marijuana will be successfully legalized, the health sector will have a boost in terms of getting medicinal value from marijuana. In fact, health facilities will economically benefit from the drug especially from the money obtained from the sale of prescription marijuana. If marijuana is legalized, there will be a need to conduct extensive medicinal research to come up with appropriate prescription drugs from marijuana. Thus, many people involved in the research will equally benefit since this will act as a form of employment to them. On the other hand, people

Analysis of Role-based Access Control (RBAC)

Analysis of Role-based Access Control (RBAC) ABSTRACT Access control systems within an enterprise system are used to control the actions, functions, applications, and operations of legitimate users within an organization and to protect the integrity of the information stored within the system. Role-based access control (RBAC) is a relatively new access control system that maps to organizational-specific structures in a way that reduces administrative costs and improves security. Although role-based security models have existed for 20 years, their application has until recently been limited. We try to give a comparison between RBAC and traditional access control models and try to evaluate the different industries where these models can be utilized. We try to evaluate the NIST RBAC model as a standard for implementing RBAC and show the implementation by developing an application which uses RBAC for authentication and authorization for the computer system to be accessed. This also involves a discussion for different variations of the Role Based Access Control models according to NIST. INTRODUCTION Access control is generally concerned with determining what users and groups of users can perform which operations on certain resources [10][1][11]. The fundamental problem is that each system and application for which access control is enforced has a proprietary method for creating and managing users, groups, and a system specific meaning of operations and objects. For many organizations, the number of systems can be in the hundreds or even thousands, the number of users can range from hundreds to the hundreds of thousands, and the number of resources that must be protected can easily exceed a million. Organizations large IT infrastructure is a mix of hugely complex and incompatible operating systems, applications and databases spread all over the world. The organizations these days have a huge number of employees which keep increasing or decreasing all the time according to the organizations need. It also has a working interaction with contractors, business partners, and customers, all of whom require access to various parts of the infrastructure. Most of the companies rely on manual or semi-automated administration of users, controlling their access to privileges for various resources on a particular system. This will inevitably become very complex and completely unmanageable if the organization is huge and the number of users of the system is in thousands or more. Often, different systems will have their own set of access requirements with different sets of administrators who will have overlapping skill-sets, leading to poor use of resources. This creates an enormous administrat ive overhead e.g. If there is a single administrator who needs to update even 25% of thousands of users everyday, it will almost be impossible for the system admin to do so. Furthermore, if multiple administrators are acquired for this job it could cause conflicts so the system becomes almost impossible to handle and maintain. Also, it would cost much more than if you were to have a single administrator. As the complexity of the organizations IT infrastructure increases, the demand for access control administration across the enterprise outgrows the capacity of manual administration across the distributed systems. Increased administrative complexity can also result in increased errors that, in turn, can lead to increased security risks. It is best suited to use the access control models to restrict unauthorized access and avoid any security risks. Access Control Models have long been used in enterprise systems and ERPs so that the system is made secure and reliable, restricting access to sensitive and confidential information resources from unauthorised users [10]. Different access control models are suited for different business applications and industries depending upon the scale and complexity of the system being developed. This report will try to analyze the different types of access control models as discussed above, that may be suitable for a variety of businesses and industry applications, giving their features, benefits and classification. This document will be covering many issues related to access control and various access control models. The critical analysis of each of the traditional access control model will be provided as well as the comparisons with each other identifying their advantages and drawbacks. The industry specific implementation of each of the model will also be discussed i.e. which model is suited for which kind of industry and what models should be selected depending on the scale of the system. Then the more recent access control model which is being widely utilized nowadays will be discussed in more detail and its different versions will be evaluated. Also role-based access control will be discussed in different environments i.e. in a centralized application environment and also in a distributed application environment. In the end, there will be an implementation of the appropriate access control model for a particular industry application called BOS (Back Office System) that is a travel agency. This application will support the day to day business operations of the organization. The model used for this application will be Role-Based access control as the structure and requirements of the business will be supported using this RBAC. It does not require the ACLs of DAC and it does not need the high security of MAC because the access privileges can be interchangeable between the users of the system. BACKGROUND Access Control Models have long been used in enterprise systems and ERPs so that the system is made secure and reliable, restricting access to sensitive and confidential information resources from unauthorised users. The basic need of access control is to protect the system and its contents from intentional and unintentional damage, theft and unauthorised disclosure. The access control models that have been used in the recent decades are traditional access control models which are Access Control Lists (ACLs), Discretionary Access Control (DAC) and Mandatory Access Control. Role Based Access Control (RBAC) is a more recent access control model which provides an alternative for the traditional access control models. The most appropriate way to restrict access of resources from unauthorized users of the system is to use one of the traditional access control models as a means of implementing secure and reliable access for that system. There are many access control models present in this age of time which cater to different needs and provide different type of security depending on the nature, scale and type of the application as well as the industry for which the application is being implemented for. Traditional access control models base access control on the discretion of the owner or administrator of the data. Under all traditional models, an end-users identity determines which access permissions are needed. This section gives a brief introduction to the predominant traditional access control models as well as some of the more recent models that have been utilized more recently. We discuss these models in more detail in the later sections: Access control lists (ACLs). Discretionary Access Control (DAC). Mandatory Access Control (MAC). Role-Based Access Control (RBAC). Access Control Lists ACLs is one of the most common access control model being used for securing operating systems, applications, computer resources and networks. When ACLs is selected as a model for implementing access control, each resource that needs to be secured has a list of users associated with them who are authorized to access the resource and even modify and make changes in it if they are allowed to. ACLs as a model provides ease of access for the security administrator to see which users have access to which resource within the application or system. Also, modifying access to a piece of information is relatively simple; a security administrator can simply modify a user from the ACL list that is a user can be created, edited or even deleted easily. There is a corresponding ACL present for every data or application, but it is not necessary to have a corresponding list that gives the network administrator information on all of the pieces of information to which a particular user has access. The only way for the security administrator to find out about any potential security violations on a particular data has to be checked by accessing each of the data individually. If the security administrator wants to revoke all the access privileges for a certain user, the administrator has to examine each list and then have to remove the user from each of the lists one by one. Responsibilities for a user in an organisation may change, in this kind of scenario this model becomes more complicated and hard to manage. Instead of removing the user from every ACL, the network administrator has to determine which permission needs to be removed, modified or added somewhere according to the new position of the user in the organisation. In some situations the user can be grouped together in the list making it easier to change the ACL by just modifying the group information rather than each of the users individually. In some other cases elaborate rules can be applied to ACLs to restrict access to particular resource. Discretionary Access Control Using Access Control Lists Discretionary Access Control The user who owns the data is the one who control access to that data in the discretionary access control model. ACL is a model which is derived from DAC. DAC is a means of restricting access to objects based on the identity of subjects and/or groups to which they belong. The controls are discretionary in the sense that a user or process given discretionary access to information is capable of passing that information along to another subject [1]. Discretionary Access Control is used to stop the user from accessing the protected objects on the system. The user may also be restricted to a subset of the possible access types available for those protected objects. Access types are the operations which are performed on an object by a user, the operations include read, write and execute. Usually an object belongs to a user or a user is the owner of that object, this means that only the owner of the object has the authority to distribute and revoke access to that object. The owner of the object may give and retain access to the objects they control based on the rules of the DAC. The identity of users and objects is the fundamental basis for controlling access in a system within this model i.e. DAC specifies which users have access to which part of the information. Mandatory Access Control Mandatory Access Control is different from other access control models in a way that the security it provides is based on hierarchy and assigns each subject and object a specific security level (e.g., classified, secret, top secret etc.). The rules that govern the access to a particular for this model are: No read up. No write down or (own level write only). Read down access gives users the ability to access any piece of information that is at or below their own security level. If a user has a secret security level, they are able to access secret and classified material but not top secret material. Write up access states that a subjects clearance must be dominated by the security level of the data or information generated. For example, someone with a secret clearance can only write things that are secret or top secret. With these two access control principles, information can only flow across security levels or up security levels [1]. Mandatory Access Control Role Based Access Control In traditional access control models the approach for granting access to resources within a particular system or an application is to specify permission for each of the user within an organization. If the user is allowed to have access to multiple resources or information within a system, the user must be assigned permissions for each of the resource. This approach is tricky and not the most reliable way of implementing access control. When users join, leave or change responsibilities within an organization, each of the users who changes status within the organization that users access privileges information must be updated for each of the permissions. Achieving the above requires a lot of resources, time and also is prone to errors as an organization can have hundreds of thousands of employees and updating each of the users information one by one is not an efficient way. RBAC get rids of this problem because it takes advantage of the users role as the key to access rather than the u sers identification. The basis for role-based model is the user-role and permission-role relationships. Each user in a role-based environment may be assigned to multiple roles, and each role may have multiple users as well. The roles that are assigned to a user depend on their job and responsibilities, and each role is assigned permissions according to roles access privileges in the organization. Permissions determine the data and applications that may be accessed by which are also assigned to a role and that role is assigned to a user or multiple users. Users role can be in many forms e.g. jobs like (bank teller, bank manager), geographic locations (London, Newcastle) or individuals (shift supervisor, managers). The advantage of using this model is that users keep changing with in the organization whereas on the other hand roles or job responsibilities for a particular role remain the same. Therefore rather than implementing the security on the users manually, roles are created which are assigned to use rs and any addition in a job specification is changed in the role description which in turn changes the all the user with that role. RBAC is a technology that offers an alternative to traditional discretionary access control (DAC) and mandatory access control (MAC) policies. RBAC allows companies to specify and enforce security policies that map naturally to the organizations structure. That is, the natural method for assigning access to information in a company is based on the individuals need for the information, which is a function of his job, or role, within the organization. RBAC allows a security administrator to use the natural structure of the organization to implement and enforce security policy. This model decreases the cost of network administration while improving the enforcement of network security policies. RBAC is designed to centrally manage privileges by providing layers of abstractions that are mapped one-to-many to real users and real operations and real resources. Managing permissions in terms of the abstractions reduces complexity and provides visualization and a context for implementing complex access control policies. Abstractions can be centrally managed resulting in real permissions on real systems. Role-Based Access Control Discretionary Access Control (DAC) In a computer system, access controls restrict subjects (users and/or processes) to performing only those operations on objects (e.g., files) for which they are authorized. For each such operation, the access controls either allow or disallow that operation to be performed [3]. DAC model works on the basis that only the owner of a resource has the capability to authorize other users to have access to the same resource. This means that the users who do not have access to a particular resource and wants access to it, only the owner of that resource has the right to give access to them. In Discretionary Access Controls (DACs), each object has an owner who exercises primary control over the object. ACL is one of the mechanisms which can be used to implement DAC and is one of the most widely used implementation for DAC. The access of information in DAC is based on the users identity and the rules that specify the users ability to have access to a certain protected resource or information. On the other hand ACLs are lists that specify users access privileges for the protected objects. DAC consists of set of rules which specify a users ability to access restricted resource or information. When a user wants access to a particular resource or information, the server searches the rule which specifies the users ability to have access to the particular resource which it wants access to. If the rule is found and there is a match for the user to have access than the user is allowed access to the resource, if there no match then the access for the resource to the user is denied . For example, there may be a rule which states that users from a certain group is not allowed to have access to a certain piece of information. Discretionary access control (DAC model) works on the discretion of the identity of the user. In DAC access to any object (files, directories, devices, information etc.) is only allowed if the owner of that object is willing to give access. Therefore, the basis of this model is creator-controlled sharing of information and identity of the owner plays an important role in the working of this method. The owners of objects can specify at their own discretion in what ways they want to share their objects to other users i.e. which other users can have what level of access to the objects they own. This can be implemented in a fairly simple way by using access control matrix which contains the names of users on the rows and the names of objects on the columns giving information of which users has access to which corresponding object. Regardless of how the matrix is represented in memory, whether by rows or by columns, the names of the users and objects must be used in the representation [1] . ACCESS CONTROL MATRIX The access control matrix is a combination of rows and columns with cells representing the permissions. In the matrix, the rows represent user/subjects and columns represent resources / objects. Regardless of how the matrix is represented in memory, whether by rows or by columns, the names of the users and objects must be used in the representation. For example, in a row-based representation an entry might read the equivalent of KIM can access KIMSFILE and DONSFILE. In a column-based representation, one might find the equivalent of DONSFILE can be accessed by DON, JOE and KIM [1]. The entries in the matrix describe what type of access each user has to each object. This representation of rows and columns is dependent on the model or mechanism being selected for Discretionary Access Control. The table below exhibits a good example of an Access Control Matrix. ACCESS CONTROL MATRIX Users / Objects KIMSFILE DONSFILE PAYROL1 PAYROL2 DOESFILE Kim rw r rw r Joe r Don rw r Jones r Doe rw Mgr Jim cp cp c c c Jan rw rw The access control matrix such as the example above is a graphical view of a set of users and their access rights on particular set of protected objects. The access types mentioned in the table above are: r denotes read access. w denotes write access. c denotes control permission access. cp control passing ability. CHARACTERISTICS OF DAC MECHANISMS The complete implementation of DAC is based on the information which is stored in the form of an access control matrix. DACs are oldest and most widely used class of access controls, the access controls for both Windows and UNIX are DAC. The Unix DAC, for example, has the well known three primitive permissions read, write, and execute. When the initial implementation of DAC started, the five basic mechanisms that were used initially to represent information were: Capabilities Profiles Access Control Lists (ACLs) Protection Bits Passwords The first two mechanisms that are capabilities and profiles represent the access control matrix information by row, connecting the accessible objects to the user. Whereas ACLs and protection bits represent the access control information by columns, connecting a list of users to an object. In the above five mechanism we will be mostly concentrating on the ACL model which is the most widely used model out of all of the mechanism present for DAC and also in this section a brief description of the other mechanisms will be provided [1]. Capabilities In a capability-based mechanism for DAC, access to objects which have restriction on them being accessed such as files is granted if the user who wants access to it has the capability for that object. The capability is a protected identifier that both identifies the object and specifies the access rights to be allowed to the accessor who possesses the capability [1]. The basic properties of capabilities are: The capability of one user can be passed onto another user. The user who possesses capability may not alter or fabricate capabilities without the interference of TCB (Trusted Computing Base). If a capability mechanism is used to implement DAC than the implementation should possess the facility to transfer capability from one user to other users. This ability of transferring capability from one user to another cannot be controlled and therefore capabilities has to be stored, determining all the users access for particular objects almost becomes impossible. Because of this reason implementing DAC using the capability mechanism becomes very difficult including the feature of revocation. A pure capability system includes the ability for users to pass the capability to other users. Because this ability is not controlled and capabilities can be stored, determining all the users who have access for a particular object generally is not possible. This makes a complete DAC implementation, including revocation, very difficult. (Revocation may not be an issue, however, since a user who has access to an object can make a copy of the information in another object. Revoking the users access on the original object does not revoke access to the information contained in the users copy. After revocation, however, changes can be made to the original object without the knowledge of revoked users.)[1]. Profiles This is another mechanism which can be used to implement DAC and have been used in some forms for several systems. When using Profiles [1] to implement DAC, a list of protected objects is used to associate each user to the particular object. The object names are inconsistent and they dont agree on being grouped together, also their size and number are difficult to reduce. If a user has access to a large number of protected objects, the profile can also become very large and it is very complex to manage such a profile. In profile mechanism all protected object names should be unique to but in reality multiple objects can have multiple names, because of this reason full pathnames should be used to identify the objects uniquely. One major drawback of this method is that when creating, modifying or deleting access to protected objects requires multiple operations because multiple users might have access to the same object therefore those users profile must be updated. Revoking access to an object in time for a user is very difficult unless the users profile is automatically checked each time that object is accessed. Also if some object is deleted, it will require some method to check whether that object exists in each of the users profile or not, which is also an extra overhead. In general, with these two mechanisms i.e. Capabilities and Profiles it is very difficult to check whether which users have access to a particular protected object. This is a very important problem that needs to be addressed in secure system and there exists more feasible and more efficient mechanisms, the above two mentioned mechanisms are not the recommended implementations for DAC. ACCESS CONTROL LISTS (ACLs) Another approach to implement the DAC model for access control using the access matrix is by means of the access control lists (ACLs). When using ACLs, each object is related with an ACL, these ACL entries indicate the authorities a subject possesses which can be executed on that object. In the ACL mechanism the access control matrix is represented by columns. By looking at an objects ACL it is easy to determine which modes of access subjects are currently authorized for that object. In other words, ACLs provide for convenient access review with respect to an object. It is also easy to revoke all accesses to an object by replacing the existing ACL with an empty one. On the other hand determining all the accesses that a subject has is difficult in an ACL-based system. It is necessary to examine the ACL of every object in the system to do access review with respect to a subject. Similarly if all accesses of a subject need to be revoked all ACLs must be visited one by one. (In practice revocation of all accesses of a subject is often done by deleting the user account corresponding to that subject. This is acceptable if a user is leaving an organization. However, if a user is reassigned within the organization it would be more convenient to retain the account and change its privileges to reflect the changed assignment of the user.) Several popular operating systems, such as UNIX and VMS, implement an abbreviated form of ACLs in which a small number, often only one or two, group names can occur in the ACL. Individual subject names are not allowed. With t his approach the ACL has a small fixed size so it can be stored using a few bits associated with the file. At the other extreme there are a number of access control packages that allow complicated rules in ACLs to limit when an how the access can be invoked. These rules can be applied to individual users or to all users who match a pattern defined in terms of user names or other user attributes. Access control is required to achieve secrecy integrity, or availability objectives. ACLs have been a popular approach for implementing the access matrix model in computer operating systems. Some systems approximate ACLs by limiting the granularity of the ACL entries to one or two user groups. Other systems allow considerable sophistication. ACLs have disadvantages for access review and revocation on a per-subject basis, but on a per-object basis they are very good. More flexible representation such as authorization tables provide for superior management of access rights, but are usually available only in database management systems. In a distributed system a combination of capabilities for coarse-grained control of access to servers, with ACLs or authorization tables for finer-grained controls within servers, is an attractive combination [10]. ACL MECHANISM WORKING ACLs allow any particular user to be allowed or disallowed access to a particular protected object. They implement the access control matrix by representing the columns as lists of users attached to the protected objects. The lists do not have to be excessively long if groups and wild cards (see below) are used. The use of groups raises the possibility of conflicts between group and individual user. As an example, the ACL entries PAYROL rw and Jones.PAYROL r appear to conflict, but can be resolved in the design of the DAC mechanism. The Apollo system has a multiple, hierarchical group mechanism. The ACL entry has the form user-id.group.organization .node. As in Multics, if the ACL specifies access rights for the user by user-id then group access rights are ignored. This allows a particular user to be excluded or restricted in access rights [13]. In the Apollo, if a user is not on the ACL by user-id, but is a member of a group, those rights are used and organization and node membershi ps are not examined. Multiple group mechanisms add more complexity and may facilitate administrative control of a system, but do not affect the utility of a DAC mechanism. Access to ACLs should be protected just as other objects are protected. The creation of groups m

Bad Medicine :: Essays Papers

Bad Medicine Before the age of television shows, movies, and the Internet people entertained one another with vibrant and exaggerated tales. Geoffrey Chaucer’s, The Canterbury Tales, is a good example of this form of entertainment. The novel details the journey of a band of pilgrims, who engaged in a storytelling competition, as they travel toward the shrine of Thomas à   Becket. These Middle Age storytellers varied as much as the stories, and consisted of a knight, physician, monk, and many more. In â€Å"the Prologue† the Physician is revealed as a con artist who cares more about himself than his patients. The Physician was a medical doctor, who was responsible for taking care of the ill and disease stricken. â€Å"No one alive could talk as well as he did / On points of medicine and surgery†¦Ã¢â‚¬  (Chaucer 30). He was part of the rising middle class society and his garments that were â€Å"lined with taffeta† (Chaucer 31) made this assumption apparent. During the Middle Ages taffeta was a material like silk, which was very expensive, so only the wealthy could afford it. To many he seemed to be a productive member of society, but appearances can be deceiving. People of the medical profession were looked upon with a certain respect; so many patients did not question what was prescribed. The Physician misused his title to take advantage of his patients’ faith. He was revealed as a liar and a cheat. He was a partner with the druggist, to help each other build their wealth. The reader can draw the appearance of his deceit in the following quote, â€Å"He gave the man his medicine then and there. / All his apothecaries in a tribe / Were ready with the drugs he would prescribe / And each made money from the other’s guile; / They had been friendly for a goodish while† (Chaucer 30). Chaucer describes these habits of the physician in order to allow the reader to paint a mental picture of his morals and character. Chaucer also brings the readers attention to the fact that the Physician â€Å"did not read the Bible very much† (31). Chaucer implies that the Physician is a sinner, who did not see an error in his dishonesty. Many analysts believe that Chaucer was trying to portray certain qualities through the vivid descriptions of the characters’, such as in the following quote describing the physician; â€Å"In blood-red garments, slashed with bluish grey / And lined with taffeta †¦Ã¢â‚¬  (Chaucer 31).