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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PROPERTY DIAGRAMS OF PURE SUBSTANCES SUBJECT : ENGINEERING THERMODYNAMICS CONTENTS: * Phase and pure substance * Properties of a substance * P-V diagram for a pure substance * P-T diagram for a pure substance * P-V-T surface * T-S diagram for a pure substance * h-s diagram for a pure substance Thermodynamic Properties * Characteristics by which physical properties of system may be described. e.g. pressure‚ volume‚ temperature‚ entropy‚ enthalpy etc
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Network Diagrams and schedule analysis NETWORK DIAGRAMS ARE SCHEMATIC DISPLAYS OF PROJECT SCHEDULE ACTIVITIES AND THE INTERDEPENDENCIES BETWEEN THESE ACTIVITIES. WHEN DEVELOPED PROPERLY‚ THIS GRAPHICAL VIEW OF A PROJECT’S ACTIVITIES CONVEYS CRITICAL SCHEDULE CHARACTERISTICS REQUIRED TO EFFECTIVELY ANALYZE AND ADJUST SCHEDULES – THUS RESULTING IN ACCURATE AND FEASIBLE SCHEDULES. THIS DOCUMENT ADDRESSES WHAT SHOULD BE CONSIDERED IN THE DEVELOPMENT OF A NETWORK DIAGRAM‚ HOW NETWORK DIAGRAMS ARE CREATED
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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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Objectives Scope and Limitations Significance Assumptions Conceptual Framework REVIEW RELATED SYSTEM METHODOLOGY APPENDICES Request Letter Interview Guide Interview Script LIST OF FIGURES Figures Pages 1 Ishikawa Diagram 2 Conceptual Framework LIST OF APPENDICES Appendices Page A B C D E F G H I J K INTRODUCTION A payroll system involves everything that has to do with the payment of employees
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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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PROJECT NETWORK DIAGRAMS The preferred technique for showing activity sequencing Schematic display of logical relationships among‚ or sequencing of project activities Uses the activity-on-arrow (AOA) or the arrowdiagramming method (ADM) A=1 1 B=2 2 3 4 G=6 D=4 E=5 5 F=4 H=6 6 I=2 J=3 8 C=3 7 1 1/14/2013 EXAMPLE Activity A B C D E F G H I J Initial Node 1 1 1 2 3 3 4 5 7 6 Final Node 2 3 4 5 5 6 7 6 6 8 Estimated Time 1 2 3 4 5 4 6 6 2 3 PROJECT NETWORK DIAGRAMS Steps in
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Mathematics and the Arts Kokichi Sugihara 1. Fractal Voronoi Diagrams The Voronoi diagram represents the partition of the plane into territories‚ where each territory consists of points nearest to the associated generators. Starting with a small number of generators‚ we add generators at random‚ simulate territory competing‚ and assign colors to the resulting diagram. Then‚ we get something like artistic patterns. Search for the point with the maximum F (θ ‚ ϕ ) in the (θ ‚ ϕ ) space. 3. Generation
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DATA FLOW DIAGRAM - one of the most commonly used modeling tool which graphically represents a system as a network of processes‚ linked together through input and output flow lines and entities. Data flow Components ▪ Process - transformation of data flow into outgoing data flow. It may represent . . - whole system - subsystem - activity ▪ Data store - repository of data in the system It may represent . . . - computer file or
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