Analysis of Attack Tree Methodology

Analysis of Attack Tree Methodology Information technology (IT) Security has become more and more important today when as e-commerce is becoming increasingly popular. People in developed countries like America and throughout European countries have been exposed to online trading for a long time; this trend is also taking off in developing countries in other parts of the world. Besides its importance toward business activities, IT security also plays a pivotal role in protecting individuals, organizations assets, which are actually parts of the business operations. Variety methods of securing business have been developed and implemented successfully. Attack Trees is one of those. Not only in Information Technology, Attack Trees is also applicable to security problems in a wide range of fields including: telecommunications, health care, finance, critical infrastructure, aerospace, intelligence and defense. To secure your business against impending risks, you first need to define all kinds of possible risks and pathways that those risks might be realized. Acknowledging risks and how they might happen, you will be able to develop measures to fight against or mitigate them. This is also what Attack Trees helps clarify. Attack Trees is a formal, convenient way to methodically categorize the different ways (how the risks happen) in which a system can be attacked[1] (risks). Attack trees are a graphical and mathematical construct used to Identify potential hostile activities that pose the greatest risk to the defender; Determine effective (and cost effective) strategies for reducing the defenders risk to an acceptable level; Describe the potential interactions between the adversary and the defender; Provide a communication mechanism for security analysts; Capture what is known (facts) and believed (assumptions) about the system and its adversaries, and store the information in a form that can subsequently be retrieved and understood by others[2] Attack tree models are graphical diagrams representing the choices and goals available to an attacker. They are represented in a tree structure, in which the root node of the tree is the global goal of an attacker and leaf nodes are different ways of achieving that goal. In an attack tree, children of the root node are refinements of the global goal, and leaf nodes represent attacks that can no longer be refined. A refinement can be conjunctive (AND) or disjunctive (OR). Figure 1 shows an example of an attack tree with the goal of the attacker is to obtain a free lunch[3]. The tree lists three possible ways to reach this goal. Lower levels in the tree explain how these sub-goals are refined. The arc connecting the children nodes expresses that this is a conjunctive (AND) refinement, which means that all sub-goals have to be fulfilled. Refinements without such a connecting arc are disjunctive (OR), expressing that satisfying one sub-goal suffices The strength of the attack tree methodology lies in the fact that its graphical, structured tree notation is easy to understand to practitioners, yet also promising for tool builders and theoreticians attempting to partially automate the threat analysis process. More and more research papers have been used attack trees in modeling security threat of information system. Over the last year, over 15,000 articles on GoogleÂÂ ® Scholar[4] have been used the attack tree technique in some way. The way this technique is used now is usually by assigning different kinds of values to the leaf nodes (for example, possible and impossible, expansive and inexpensive, cost to attack, probability of success of a given attack, etc.) then propagating node values up the tree following some rules. Based on that calculation, people can make some statements about attacks, for example, what is the cheapest low-risk attack or most likely non-intrusive attack[5]. In retrospect personal experiences, we notice that what we have done in the past and until now are closely related to what is presented in Attack Trees model, although back by that time, we were not exposed to concept of Attack Trees, but the approach is basically the same. It was when we worked on a project and had to define all possible risks/threats that might happen and how we can take mitigate actions against those risks. The only thing that we had not paid enough attention to, and was actually very important thing, was how all those risks might happen. Failing to do this costs us a lot later on when the risk did happen in a way that we had not thought of, so did not develop appropriate cause of actions and we were passively react to it. It was when we were developing an online testing system to help students prepare for entrance exam to universities[6]. We would have a strong team of excellent teachers from many famous schools build the test content; and have a team of people t o import those tests, including answers (multiple choice format), into the system. We conducted training for importing team. (Also, the importing work did take a lot of time so we could not talk all the teachers into it). Things went well until the day we actually launched the Beta version. We had volunteers, who were actual pupils, do the test; it was nothing better for them to take free tests and receive free feedbacks. But when it came to result announce and feedbacks were given to those pupils, everything was just totally wrong; many of student answers, which were actually correct, were marked incorrect and the must-be-correct answers given by the system were actually incorrect. Recalling that single day, it was a BIG shame on us, the team who worked on the project. We had a person head of quality control who would make sure that all the tests designed, including questions and answers, are without mistakes. We were very strict on that. We also had a head of training department w ho will make sure that our collaborators, who performed importing job, do their job carefully and without mistakes. Random test were taken before we launched the first version and things were all going very well. We developed risk monitoring blocks and figure 2 is shown as an example. For a risk that the test is invalidate, we clarified three possible reasons: design problem, importing problem and system problem. The reasons are then tracked further along blocks which are colored accordingly. So to prevent or mitigate the risk, we only need to make sure that our teacher quality is excellent, our training and importing job are done beautifully and our system will not malfunction. But we only did to the extent that, for example, as long as our collaborators work diligently and carefully, mistakes would largely be avoided. Later on, we found out the root of the problem was that one of our collaborator was person from our main competitor and he purposely destroyed our system by changing all correct answers just a night before the free testing event. This was the thing that we had never thought of. We did not think that we had problem right from the collaborators recruitment and that this might had been one of many possible ways that can invalidate our test bank. Until then did we know that what we called in general collaborators quality is not limited to the fact that whether they were capable of understanding and doing the job, but also including their working ethic. Consequently, we were left with everything beginning from scratch; all teachers work was carefully rechecked because we did not know right away what exactly caused the problem. Almost all the imported work was deleted and restarted. If we had been able to clarify this possibility, though small, we would have developed action appropriate enough to prevent it, such as lock the system and deny any access before we launched the first version, this would have saved us money and time and prestige as well. We finally were able to offer a running version but it surely had cost us much more resources.[7] From our personal experience, we see that Attack Trees model is a very useful tool to help organizations in threat detection and appropriate mitigating action development. The model will have important and positive impact on organization business operation in that it help name all possible risks and specific pathways that those risks might become real. From that, it helps determine effective and cost effective strategies to reduce risks to an acceptable level. Organizations should adopt Attack Trees model to secure themselves from any uncertainties that may happen. References Attack trees: Modeling security threats. Dr. Dobbs journal; Schneider (2005). Attack Trees Analysis, Terrance Ingoldsby on January 16, 2009 http://redteamjournal.com/2009/01/attack-tree-analysis/ Mauw, S., Oostdijk, M. (2005) Foundations of Attack Trees Information Security and Cryptology-ICISC 2005 Springer http://scholar.google.com/scholar?hl=enq=attack+trees+information+systemas_sdt=2000as_ylo=2009as_vis=0 Edge, K. (2007) The Use of Attack and Protection Trees to Analyze Security for an Online Banking System. HICSS 07: Proceedings of the 40th Annual Hawaii International Conference on System Sciences. This is how universities in my country recruit prospective students, they do not base on applications but base on result of actual tests, which are held by the Ministry of Education annually for all participants Our initial project result to date http://hocmai.vn/

The Theme Of Isolation In Various Literature :: essays research papers fc

The Theme of Isolation in Various Literature In this essay all of the literature I have chosen will have to do with isolation. {1} When people have been isolated they don't see other people for a long time and this can lead to make a person stronger or make them weaker. In a live and death situation in can give them the extra will to live that you didn't have before. It can make him stronger and become his ally or it can beat him. When you are alone it makes you think about things that you never thought about before and make you work harder at the task at hand. "Never Cry Wolf" by Farley Mowat, is a plea for understanding and preservation of the wolf that is being harried into extinction by humanity. Mowat's philosophy is that it does not pose a threat to other wildlife and, in fact, is not a danger or a competitor of any consequence to humans. In 1973, the Canadian government's wildlife service assigned Farley Mowat to investigate the rumor that hoards of bloodthirsty wolves are slaughtering the arctic caribou. Mowat is dropped alone on the frozen tundra, where he begins his mission to live among the howling wolf packs and study their ways of life. He learned something of their language and how they conveyed "news" over great distances. He found out the meaning behind the Eskimo saying, "the wolf keeps the caribou strong." Mowat observed strong family ties among wolves and he finished his long assignment by having great compassion for them. And he concluded with the realization that the wolf in fact is very different from the wolf of a legend. When the book was published there was no more than 1200 wolves existing. Compare this to the 2000 the year before. I hope there is still time to prevent another human error against nature. "the elimination from this planet of a fellow creature which has at least an equal right to life" {2} I think people need to look at how we coincide with nature in the future. Only 1200 wolves in the whole north, at this rate our destiny surely spells disaster. Are there any circumstances under which people should be permitted to kill wolves? You could come up with a reason, just as there are circumstances when people should be permitted to kill other people. The point is that not many reasons are legitimate. If it is posing a threat to you alright, but don't eradicate the whole species because of one incidence. According to a article in the JuneJuly 1987 issue of "Outdoor Canada"

History of philosophy Essay

The study of philosophy may deal with every dimension of human life and can raise questions in any field of study or endeavor. Philosophy pursues questions rather than answers. Philosophy is not bound by any particular â€Å"truths† that set limits to the desire to continue asking questions. Philosophy changes historically both in respect to its content and its character. Definitions Etymologically, philosophy is derived from the Greek word philein or philia meaning â€Å"love† or â€Å"friendship† and sophia meaning â€Å"wisdom. † Hence, â€Å"love of wisdom. † The Chinese define philosophy as Zhe-Xue or Che Shueh (originally coined by Dr.Nishi Amane). Zhe means â€Å"wisdom† while Xue means â€Å"study. † Significantly, the Chinese character Zhe bears the emblem of mouth and hand which suggests the inseparability of words and action. This philosophy is the translation of words into action or the application of theory into praxis. Hence, for the Chinese, philosophy singles out a person to live on what he says. For the Hindus, philosophy is Darsana. Darsana means seeing, not only through the eyes but through the whole being of the one that sees. In other words, philosophy for the Hindus means seeing the whole reality through a total advertence and involvement of the looker. Philosophy refers to the field of study of the process which includes standards and guidelines for thought and for logic by which people develop concepts and principles which describe people, things and events, and techniques for using the concept and principles for the purpose of observing, analyzing, understanding, evaluating, organizing, and dealing with themselves and other people, things, and events who/which comprise reality (Kroepel, 2011) Philosophy refers to a human drive in the search of knowledge and wisdom to facilitate the evolution of man. Philosophy studies the fundamental nature of existence, of man, and of man’s relationship to existence. CONCEPT OF PHILOSOPHY In order to live, a man must act; in order to act, he must make choices; in order to make choices, he must define a code of values; in order to define a code of values, he must know what he is and where he is, he must know his own nature (including his means of knowledge) and the nature of the universe in which he acts. All of this things put together, is the very concept of PHILOSOPHY. Origin of Philosophy Western Philosophy began in Miletus ( accdg.to Reginald Ellen). The radix of the claim lies on Thales: the acclaimed first philosopher. Historically, western philosophy began in Greece. The word philosophy is even derived from the Greek language and means a love of wisdom. Ancient western philosophy had three main branches: ethics, logic, and physics. These three branches have now broken into even smaller sub-sections, covering everything from epistemology to aesthetics. Socrates was a large influence on western philosophy, but there was a pre-Socratic era that covered philosophical topics. Eastern philosophy has its roots in religion, specifically the Abrahamic religions (Islam, Judaism & Christianism). It is more concerned with asking questions about God and how the world relates to God. Abrahamic religions (also Abrahamism) are the monotheistic faiths of Middle Eastern origin, emphasizing and tracing their common origin to Abraham or recognizing a spiritual tradition identified with him. They are one of the major divisions in comparative religion, along with Indian religions (Dharmic) and East Asian religions (Taoist). Abraham was said to have lived during the Iron Age sometime after 2000 B. C. E. , in the city of Ur in Mesopotamia. The way eastern philosophers created theories on knowledge and religion has led people to practice the philosophies of certain philosophers without adopting all aspects of that branch. For example, some people may consider themselves believers in the Buddhist philosophy, but they never actually go and worship Buddha. The eastern philosophers historically believed that religion was a large part of the study of philosophy. Contemporary practices of eastern philosophy often remove the religious part. Islam impacted much of what we now consider eastern philosophy, meaning that most branches have a religious aspect. The most common branches of eastern philosophy include: Taoism, Buddhism, Hinduism, Maoism, Shinto, Confucius, and Legalism. Both regions can attribute a large amount of current philosophical thought to some form of religion. The eastern world chose to embrace religion as their main pursuit of knowledge, while the western world broke philosophy into a bunch of different branches. Branches of Philosophy Epistemology This refers to the branch of philosophy that is broadly defined as the study of knowledge. It answers the question, â€Å"how do we know? † It encompasses the nature of concepts, the construction of concepts, the validity of the senses, logical reasoning, as well as thoughts, ideas, memories, emotions and all things mental. It is concerned with how our minds are related to reality, and whether these relationships are valid or invalid. Aesthetics refers to the branch of philosophy that is broadly defined as the study of art. It answers the question, â€Å"what life can be like? † In philosophy, aesthetics is important because it delves into the reason why art has always existed to reflect and express the desire and need of mankind through the ages to see the world in a different and clear way. It further evaluates art by using the standards of human life, and if whether it accomplishes the job of satisfying man’s intellectual needs, or whether it tends to hurt or make worse of those needs. Metaphysics Literally means beyond physics, this refers to the branch of philosophy that is broadly defined as the study of existence. It answers the questions, â€Å"What is out there? † or â€Å"What is real? † As the foundation of philosophy, metaphysics is also regarded as the fundamental view of the world. It encompasses everything that exists, as well as the nature of existence itself. It determines whether the world is real, or merely an illusion. Ethics This refers to the branch of philosophy that is broadly defined as the study of action. It answers the question, â€Å"what should I do? † Ethics deals with the proper course of action for man. Specifically, it answers whether or not a human act is good or bad. At a more fundamental level, Ethics can also be defined as the method by which people categorize values and pursue them. Logic It is the branch of philosophy that is broadly defined as the study of reason. It answers the question, â€Å"what is correct reasoning? † Furthermore, logic attempts to distinguish a fact from fallacy. Politics It refers to the branch of philosophy that is broadly defined as the study of force. It answers the question, â€Å"what acts are permissible? † Under its philosophical perspective, politics is ethics applied to a group of people. Brief History of Philosophy. Pre-Socratic Philosophy Characterized by the rejection of the mythological explanation on the nature and phenomena in the universe. The thinkers under this time period were mainly concerned with the search for the â€Å"true essence of things† and made use of systematic and scientific approach in uncovering the realities in the universe. Pre-Socratic Philosophers Thales (c. 624 – 546 B. C. ) Greek philosopher who was regarded as the first philosopher in western tradition. He became known for positing that water is the single element that comprised all things in the universe. He also made famous the aphorism, â€Å"know thy self. † Anaximenes (c. 610 – 546 B. C. ) A student of Thales who postulated that air is the source of all things in the universe. His major contribution, however, was stating that nothing can be created from nothing. Matter, force, and energy are indestructible. These ideas later reappeared in physics in the laws of the conservation of matter and energy. Anaximander He explained the world as originating in conflicts between contraries, such as hot and cold and wet and dry. The cold partly dried up, leaving the Earth and its water. The hot turned some water into mist and air, while the remainder ascended to form fiery rings in the heavens. Holes in the rings are the sun, moon, and stars. CLASSICAL PHILOSOPHY Classical Philosophy was primarily characterized by the rise of the â€Å"Great Greek Triumvirate† – Socrates, Plato & Aristotle. Classical Philosophers Socrates (c. 469 – 399 B. C. ) A Greek philosopher who became known as one of the most prominent philosopher in Ethics. Unlike his contemporaries, Socrates was more concerned with how people should behave rather than how the world works. Plato (c. 428 – 348 B. C. ) A student of Socrates who become known for through his dialogues which contained the presentation of his ideologies and theories in a conversational form. Aristotle (c. 384 – 322 B. C. ) He was the student of Plato and became known as the first thinker to create a comprehensive system of philosophy, encompassing Ethics, Aesthetics, Politics, Metaphysics, Logic and Science. MEDIEVAL PHILOSOPHY Medieval Philosophy was the period predominantly composed of philosophers who were concerned with proving the existence of God and with reconciling Christianity/Islam with the classical philosophy of Greece particularly that of Aristotle . This period also saw the establishment of the first universities, which became an important factor in the subsequent development of philosophy. Medieval Philosophers Avicenna (980 – 1037) A Persian philosopher, physician and polymath during the Golden Age of Islam. As a philosopher and a devout Muslim, he tried to reconcile the rational Greek philosophy with Islamic theology. St. Thomas Aquinas (1225 – 1274) An Italian philosopher and theologian who became a great influence on subsequent Christian philosophies, particularly that of the Roman Catholic Church. EARLY MODERN PHILOSOPHY Early Modern Philosophy. The rise of Modern Philosophy can be attributed to certain historical and cultural changes that happened between the Age of Reason during the 17th century and the Age of Enlightenment during the 18th century. Among the changes during the said period were the advancement in science, the growth of religious tolerance and the rise of liberalism (promotion of liberty and equality). Early Modern Philosophers Rene Descartes (1596 – 1650) A French philosopher, mathematician, scientist and writer of the Age of Reason. He has been called the â€Å"Father of Modern Philosophy†, and much of a subsequent Western philosophy can be seen as a response for his writings. He is responsible for one of the best-known quotations in philosophy: â€Å"Cogito, ergo sum† or â€Å"I think, therefore I am† (Mastin 2008). Baruch Spinoza (1623 – 1677) a Dutch philosopher who was a contemporary of Descartes. Spinoza became famous for his belief that absolutely everything including human behaviour occurs through the operation of necessity, leaving absolutely no room for free will and spontaneity. Gottfried Wilhelm Leibniz (1646 – 1716) A German philosopher, mathematician, scientist and polymath who postulated the concept of â€Å"monads† which refers to the ultimate element of the universe from which all things, including human beings and God himself are made of. Immanuel Kant (1724 – 1804) A German philosopher during the Age of Enlightenment. He is regarded as one of the most famous thinkers in modern philosophy. His contributions in all branches of philosophy are often described as being, â€Å"immeasurable†. Kant’s Copernican Revolution. One of the most popular Kantian theories which states that the â€Å"representation† of an object greatly helps the perceiver to perceive a certain object and not the object per se. To put it more accurately, tangible materials (such as the actual glass) are less important in perceiving the glass. What is important is how we experience the â€Å"glassness† of the glass through experience. Kant believed that the human mind can be compared to a tabula rasa (blank tablet). Examples: It is like a computer with no operating system. A computer with no â€Å"O. S. † should be installed with various programs to function properly. A new born baby should be exposed with positive experiences which may affect his lifestyle and manner on how he/she perceive things. MODERN PHILOSOPHY Modern Philosophy. The modern period of philosophy generally refers to the 19th and 20th centuries. The late 20th Century which is sometimes referred to as the contemporary period, became the venue of major development in philosophy characterized by the rise of new philosophical movements. Modern Philosophers Jeremy Bentham (1748 – 1832) An English philosopher, political radical and legal and social reformer of the early modern period. He became the founder of the Utilitarianism which refers to the principle that holds that the right action is that which would cause â€Å"the greatest happiness of the greatest number†. John Stuart Mill (1806 – 1873) An English philosopher and political scientist who was the protege of Bentham and conducted major improvements on the principles of Utilitarianism. Friedrich Wilhelm Nietzsche (pronounced NEE-cha) (1844 – 1900) A 19th Century German philosopher who was known for challenging the foundations of Christianity and traditional morality, famously uttering, â€Å"God is Dead†. EASTERN & WESTERN PHILOSOPHIES: AN OVERVIEW Western Philosophy Refers to the philosophical thinking in the Western or Occidental world, particularly in Europe. Historically, it refers to the philosophical thinking of Western civilization, beginning in ancient Greece. Western thought puts more emphasis on individualism, science, math, and politics – hence, rational and materialistic. It can be seen as the triumph of reason and empiricism over faith/religion – a search involving many questions. Eastern Philosophy. Refers broadly to the various philosophies in the Eastern or Oriental world, particularly Asia and some Arab countries. Historically, it is heavily influenced by Hinduism — the world’s oldest religion, beginning in India. Eastern thought puts more emphasis on interdependence (of human beings and nature), harmony, unity, and faith – hence, meditative and spiritual. It can be seen as the triumph of faith/religion over science and reason – an answer following realization. KEY CHARACTERISTICS OF EASTERN & WESTERN PHILOSOPHIES Western Philosophy. Is rational because most western thought focused on refining epistemology and logic. It emphasized that it is the individual using his/her rational ability to deduce the truth about the things around him/her, and this separates the individual as a subjective mind different from objective reality: Nature, God, the Universe. Eastern Philosophy In the East, philosophers have been more concerned with ordaining society in a harmonious manner, finding humanity’s proper place in society and nature, acting and thinking in a way that would promote unity and order in the universe. It does not have to rely on rationality and often tries to transcend individuality itself to reveal a person’s inherent sameness with the universe/nature. Reason is in fact seen as a stumbling block to truly understand reality. It focuses on how to live and tends to accept the way things are. Eastern thought is focused more on the mind and the spirit/soul, tending to offer a different level of internal experience (meditative) from which to draw conclusions. Thus, it would be hard to separate philosophy and religion.

Perl Array unshift() Function Tutorial

Perl Array unshift() Function Tutorial Perls unshift() function is used to add value or values onto the beginning of an array (prepend), which increases the number of elements. The new values then become the first elements in the array. It returns the new total number of elements in the array. Its easy to confuse this function with push(), which adds elements to the end of an array. Picture a row of numbered boxes, going from left to right. The unshift() function would add the new value or values on to the left side of the array, and increase the elements. In the examples, the value of myNames becomes (Larry, Curly, Moe). The array can also be thought of as a stack- picture a stack of numbered boxes, starting with 0 on the top and increasing as it goes down. The unshift() function would add the value to the top of the stack, and increase the overall size of the stack. You can unshift() multiple values onto the array directly: Or by unshift()-ing an array:

Free Essays on The Struggle Within Huckleberry Finn

The Struggle within Huckelberry Finn Mark Twain’s The Adventures of Huckleberry Finn is a novel about a boy’s struggle with his inner conscience in the Missouri of the 1800’s. Huckleberry Finn spends most of his time floating down the Mississippi River on a raft with a runaway slave named Jim. The novel illustrates Huck’s battle with his conscience over slavery, education, and society’s beliefs. Huck is a rebellious young boy who finds himself taking some responsibility and maturing throughout the novel. Although Mark Twain wrote Huckleberry Finn twenty years after the Civil War, America was still struggling with racism and the aftereffects of slavery; especially the South. Jim is a runaway slave and the companion of Huck Finn as they both travel down the river. According to the law, Jim is Miss Watson’s property, but according to Huck’s logic and fairness it seems â€Å"right† to help Jim. As Huck spends more time with Jim he stats seeing him as a friend instead of a slave or a fugitive on the run. An example of this is when Huck encounters a group of slave hunters and makes up a story in order to lure them away from Jim. But Jim remains at the mercy of every character in the novel, including Huck, as the letter that Huck nearly sent to Miss Watson shows the inner conflict that he is struggling with. Nonetheless Jim remains a loyal friend and he is actually the only adult who provides a positive example for Huck to follow. Huckleberry Finn has morally educated himself throughout the novel rather than intellectually. Most of the novel illustrates the maturation and development of Huck. He is a poor, uneducated orphan boy who does not trust the teachings that others try to install in him. When Huck meets Jim he starts to question the teachings he received especially regarding race and slavery. More than once Huck chooses to â€Å"go to hell† rather than following the rules and going along with what he has bee... Free Essays on The Struggle Within Huckleberry Finn Free Essays on The Struggle Within Huckleberry Finn The Struggle within Huckelberry Finn Mark Twain’s The Adventures of Huckleberry Finn is a novel about a boy’s struggle with his inner conscience in the Missouri of the 1800’s. Huckleberry Finn spends most of his time floating down the Mississippi River on a raft with a runaway slave named Jim. The novel illustrates Huck’s battle with his conscience over slavery, education, and society’s beliefs. Huck is a rebellious young boy who finds himself taking some responsibility and maturing throughout the novel. Although Mark Twain wrote Huckleberry Finn twenty years after the Civil War, America was still struggling with racism and the aftereffects of slavery; especially the South. Jim is a runaway slave and the companion of Huck Finn as they both travel down the river. According to the law, Jim is Miss Watson’s property, but according to Huck’s logic and fairness it seems â€Å"right† to help Jim. As Huck spends more time with Jim he stats seeing him as a friend instead of a slave or a fugitive on the run. An example of this is when Huck encounters a group of slave hunters and makes up a story in order to lure them away from Jim. But Jim remains at the mercy of every character in the novel, including Huck, as the letter that Huck nearly sent to Miss Watson shows the inner conflict that he is struggling with. Nonetheless Jim remains a loyal friend and he is actually the only adult who provides a positive example for Huck to follow. Huckleberry Finn has morally educated himself throughout the novel rather than intellectually. Most of the novel illustrates the maturation and development of Huck. He is a poor, uneducated orphan boy who does not trust the teachings that others try to install in him. When Huck meets Jim he starts to question the teachings he received especially regarding race and slavery. More than once Huck chooses to â€Å"go to hell† rather than following the rules and going along with what he has bee...

Managing Finance assignment 3 Essay Example | Topics and Well Written Essays - 2000 words

Managing Finance assignment 3 - Essay Example 2. Penetration pricing- Penetration Pricing: The strategy of setting a products price relatively low in order to generate a high sales volume. The strategy is commonly associated with pricing new products that do not have identifiable price-market segments. It is used to secure rapid penetration of a market. . This is the strategy use by many Chinese companies. It priced its products very much than its Western counterparts and it is making a head way for a quite number of computer products. 3. Profit Maximization - In economics, profit maximization is the process by which a firm determines the price and output level that returns the greatest profit.. Hence, based on the above concept. The strategy requires the price combinations that would yield the highest profit. Hence, a company can use this to have higher profits. Directly or indirectly this is used my many food business like Jollibee food chains. If one enters an outlet one would observe packaging their meals into different combinations of food items. Such strategy is profit maximization. 4. Competitor indexing. It is a price setting technique used by marketers. Generally, it involves using the price of competitors products in determining the price of your own products. Its main advantage is ease of use. Extensive marketing research and statistical analysis are not required 5. Target rate of return pricing- It is a pricing method used almost exclusively by market leaders or monopolists. You start with a rate of return objective, like 5% of invested capital, or 10% of sales revenue. Then you arrange your price structure so as to achieve these target rates of return.

History of Programming Essay Example | Topics and Well Written Essays - 2000 words

History of Programming - Essay Example The essay "History of Programming" talks about the history of programming and programming languages that took place in various periods along with examples of prominent computer languages used. Futurist Raymond Kurzweil aptly stated that â€Å"if the automobile industry had made as much progress [as computers and software] in the past fifty years, a car today would cost a hundredth of a cent and go faster than the speed of light". The idea of synthesizing available science and means to get work from machines was not a new one. For example, Joseph Marie Jacquard invented a mechanical loom to make it easier to create complex designs for textiles. However, machines which could be classified as computers and based on electronics started appearing in the late 1940s. The initial machines were large physical machines, usually as big as a room and weighing tons in weight. To program these machines, low-level machine language was used, which, by its nature, was specific to the machine. Fast forward to today, and one can use ebooks which are many orders of magnitude more powerful than the computers of earlier years and high-level languages can perform actions which could not be imagined 60 years ago. O’Reilly Media, a noted publisher of technology books, has created a visual map of programming languages as they evolved during the short and fast-paced history of computing since the 1950’s. This map has been useful in writing this paper as it provides a single snapshot and reference of developments in the area over the years.