Why Iceland Exists Iceland has an area of 103‚000 kilometres square. This makes it the 18th largest island in the world. It is just south of the Arctic Circle. The Iceland hotspot and the Mid-Atlantic Ridge go right through Iceland. This is an essay about how tectonic activity and how it comes to form Iceland. Location Iceland is an island between the Greenland Sea and the Northern Atlantic Ocean‚ northwest of the United Kingdom Iceland is situated right in the North Atlantic Ocean. Iceland
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Both Class Diagrams and Use Case Diagrams are used in the requirements determination of object oriented development. Object oriented development is an approach to system development that uses the object as the basic unit of systems analysis and design. Use case shows the relationships among actors and use cases within a system. Class diagrams are widely used to describe the types of objects in a system and their relationships The purpose of Use case diagram is that it shows the interaction
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USE-CASE DIAGRAM EXERCISE 1. Draw a use case diagram for an ATM machine with the following functionality. A customer’s interaction with the system involves logging in‚ making withdrawal requests‚ deposit requests‚ and balance inquiry requests. If the customer logs in‚ there is a possibility (although rare) that the system will confiscate the card (for example‚ if the login is incorrect or if the bank determines that the customer’s balance is significantly under zero). Card confiscation involves
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Online Auction System Use Case and Misuse Case Diagrams Mounika Challagundla‚ Graduate Student Dr. Natarajan Meghanathan‚ Associate Professor Department of Computer Science Jackson State University‚ Jackson‚ MS 39217‚ USA use case description • Registration: Anyone who want to participate in auction first they have to register to the system. • Login: The user will provide login details in order to access anything. • Post items: Once registered as a seller‚ the seller can start posting his
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the promise has not run out”(11). The promise of a good life in America is still out there that is why the American Dream has not run out. The American Dream is still out there because‚ one can get a job that provides financial stability‚ if one works for it one can achieve it‚ hard work and dedication can take a person anywhere. There are many different reasons why the American Dream still exists. Many households in the U.S. have wage earners “earning between $30‚000 and $90‚000 a year. They also
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4.3 DATA FLOW DIAGRAM A data flow diagram is a graphical technique that depicts information flow and transforms that are applied as data move from input to output. The DFD is also known as Data Flow Graph or Bubble Chart. The DFD is used to represent increasing information flow and functional details. Also DFD can be stated as the starting point of the design phase that functionally decomposes the requirements specifications down to the lowest level of detail. A Level 0 also called a fundamental
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5.1 Use case diagram A use case diagram at its simplest is a representation of a user’s interaction with the system that shows the relationship between the user and the different use cases in which the user is involved. A use case diagram can identify the different types of users of a system. The different use cases and will often be accompanied by other types of diagrams as well. Figure 5.2: Use case Diagram 5.3 Use Case Analysis 5.3.1 Activity Diagram The following activity diagram represents
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Observations should include details of colour changes‚ precipitates‚ and tests on gases evolved. Tests on KA1 Test (a) Add dilute hydrochloric acid to a small amount of solid KA1‚ then warm gently. (b) Dissolve solid KA1 in distilled water and filter. Use separate portions of the filtrate for the following tests. (i) Add aqueous sodium hydroxide‚ then in excess. (ii) Add aqueous ammonia‚ then in excess followed by aqueous ammonium chloride. (iii) Add aqueous iron (III) chloride‚ then warm. (iv) Add aqueous
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other races. The question of why there is racism is often left out of many history texts‚ as they seem to focus on the different wars of our time instead. However‚ the question of why racism exists is a very important one‚ as racism has been causes of many of the problems throughout history and today‚ such as the Civil War or the War in Iraq. In Howard Zinn’s book: A People’s History of the United States: 1492-Present‚ he explores the different reasons of why racism exists and how it may be stopped
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of the soul. The most confusing aspect of this was the beginning of his argument. Socrates bases his argument from his un-doubtful acceptance of the soul existing and being immortal; although he is known to use questions and dialogue to explain the abstract ideas‚ I believe assuming it exists when trying to prove it actual existence defeats the overall purpose of an argument. In other words‚ if one accepts this first premise beforehand‚ their arguments
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