Tutorial Week 7 - Class and Entity-Relationship Diagrams 1 Class Diagrams and Entity Relationship Diagrams (ERD) Class diagrams and ERDs both model the structure of a system. Class diagrams represent the dynamic aspects of a system: both the structural and behavioural features. ERDs‚ depicting only structural features provide a static view of the system. 2 Class Diagrams 2.1 Elements of a class diagram: 2.1.1 class A class is a general concept (represented as a square box). A class defines
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Venn Diagrams Paper Math 156 Jacqueline Burrell May 13‚ 2012 Evan Schwartz‚ instructor How Venn Diagrams Can Help Students in Math Venn diagrams are used in math to visually assist students when grouping real sets or implied ideas. The diagrams were invented by John Venn and are his only known accomplishments in the science of mathematical logic (Stapel‚ 2012). The diagram begins with all related information and is named the universal set. In this set all the known information pertaining
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Gas Station Project * Main * My Books * C/C++ Programs * Java Programs * Perl/PHP/Ruby Programs * Team Projects * Various Projects Program Description This was a semester-long project from my software engineering class at UNO. The goal of this project was to create a gas station management software package using the classic waterfall development lifecycle. Some of the requirements that needed to be met were: the ability to control gas pumps‚ keep track of in-store
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management‚ utilizing the three-point technique can prove to be an invaluable tool. In addition to the three-point technique applying the earliest-start (ES)‚ earliest-finish (EF)‚ latest-start (LS)‚ and latest-finish (LF) procedure to identify the critical path‚ the project completion time‚ and the slack for each task can prove to be set of invaluable data that will assist the project manager in accurately determining task duration estimates for the entire scope of work for the project. In this week’s
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and Diagrams Fortunately‚ Microsoft Office includes tools needed to word-process symbols‚ subscripts‚ equations and diagrams as standard components. These are used to prepare professional-looking documents complete with equations and diagrams when needed. The tools needed for word-processing equations and diagram are common to the Microsoft Office suite of software and can be accessed from Microsoft Word‚ Excel and PowerPoint. The document‚ Using Symbols‚ Subscripts‚ Equations and Diagrams in Reports
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5 Design Decision Styles. What’s Yours? By Jared M. Spool Originally published: Jan 21‚ 2009 In the early days of e-commerce‚ we studied how seasoned hiking customers bought hiking boots online. Two sites in our study‚ L.L. Bean and REI‚ both sold virtually identical boots at the same price with practically the same marketing copy. Yet the customers we studied were far more likely to buy the boots on the REI site than on the L.L. Bean site. Why? Because the product pictures on the REI site showed
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Об АВТОРЕ‚ о его КНИГЕ и о КОММЕНТАРИИ к ней Язык книги Питера Абрахамса «Тропою грома» нетруден‚ словарь‚ которым пользуется автор‚ невелик по объёму‚ в тексте встречаются грамматические конструкции‚ которые в основном входят в программу 1-го курса обучения на факультетах и в институтах иностранных языков. Поэтому эта книга будет доступна студентам на 2-м курсе или даже в конце 1-го курса. Язык Питера Абрахамса характеризуется некоторыми особенностями‚ и прежде всего это касается словаря
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PATH FINDING: A* OR DIJKSTRA’S? Abstract It is well known that computing shortest paths over a network is an important task in many network and transportation related analyses. Choosing an adequate algorithm from the numerous algorithms reported in the literature is a critical step in many applications involving real road networks. In a recent study‚ a set of two shortest path algorithms that run fastest on real road networks has been identified. These two algorithms are: 1) the A* algorithm
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The City Shaped; The City as Diagram In the Tired chapter‚ “The City as Diagram”‚ he explains that the design intent that determines the eventual form of certain cities. With the contemporary Eco village of Arcosanti and the Medieval period Palmanova in Italy‚ he contrasts two distinct forms‚ tracing their diagrammatic evolution. The diagram of the two cities is very specific‚ addressing their intent; responding to the landscape the former and to the militaristic needs and ideas in the latter
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Set Operations and Venn Diagrams " Please respond to the following: QUES: Create a story problem that demonstrates how a Venn diagram could be used to illustrate combined operation with sets. ANS: Use a Venn diagram to illustrate the following scenario: There are 40 people in a drum corp. Of the 40 people‚ 20 play the snare drum; 10 play the trumpet; 5 plays the cymbals. There are 5 people that play both the snare drum and cymbals; and 3 play all three instruments. How many people don’t play
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