Page: 317 LOD: Easy 7. A data flow diagram (DFD) is a tool that depicts the flow of data through a system and the work or processing performed by that system. Answer: True Page: 217 LOD: Easy 8. An entity relationship diagram (ERD) is a tool that depicts the flow of data through a system and the work or processing performed by that system. Answer: False Page: 317 LOD: Medium Rationale: A data flow diagram (DFD) is a tool that depicts the flow of data through
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Use Case Diagrams Tutorial What is a use case? • A requirements analysis concept • A case of a use of the system/product • Describes the system's actions from a the point of view of a user • Tells a story • A sequence of events involving • Interactions of a user with the system • Specifies one aspect of the behavior of a system, without specifying the structure of the system • Is oriented toward satisfying a user's goal How do we describe use cases? • Textual or tabular descriptions •
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information you would expect from a first interview? Yes in terms of identifying the main functionality of the information system. She has enough information for most of the Process Modelling. Inez can draw most of the Context Diagram, Functional Decomposition Diagram and Systems
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A Library System 1. Inception We have been asked to build a computer based library system that will handle the bookkeeping aspects of a library and provide user browsing facilities. The first thing to do is to go and find out about the target library or libraries to see what they do now and what they would like to be able to do. We get the following data: 2. Requirements Books and Journals. The library contains both books and journals. It may have several copies of the same book
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Statement 9 4.2 Problem Statement 11 5Evaluation of the current System 13 6Problem Statement Solution 13 6.1 High budget solution 15 6.2 Low Budget Solution 17 7Dataflow Diagrams 19 What is a Dataflow diagram? 19 Different levels of Data Flow Diagrams 20 Level 1 Data Flow Diagram 21 Level 2 Data Flow Diagram 22 8 ERD of New System 23 9Data Dictionaries 25 10Cost Benefit Analysis 26 11A Cost benefit Analysis for Car Hire Company 26 12Evaluation of Proposed New System 27 13Summary
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Requirements Specification * Operational Feasibility * Fishbone Diagram * Functional Decomposition Diagram * Technical Feasibility * Compatibility Checking * Relevance of the Technologies * Schedule Feasibility * Gantt Chart * Economic Feasibility * Cost and Benefit Analysis * Cost Recovery Scheme * Requirements Modeling * Data and Process Modeling * Context Diagram * Data flow Diagram * System Flowchart * Risks Assessment/Analysis * Design
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Task 1B Frame Rates Frame Rates or FPS (Frames Per Second) is the amount of images that are being displayed each second, FPS would be used in videos, TV broadcasts, Video games, etc. The more frames that are put in per second will show a more smoother looking video and it will give better visuals. Higher FPS would be used for more professional use because it would take more to load comparing to a less FPS video, so a high FPS video can result in a bigger file size. YouTube has added a feature where
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Leon van der Berg & Christiaan Dotze Leon van der Berg & Christiaan Dotze Documentation, Analysis and Design Damelin Vaal (Group Assignment) Documentation, Analysis and Design Damelin Vaal (Group Assignment) Index: Page | Content | 1 | Index (this page) | 2 | Question 1 | 3 | Question 1 (continued) | 4 | Question 1 (continued) | 5 | Question 1 (continued) | 6 | Question 1 (continued) | 7 | Question 1 (continued) | 8 | Question 1 (continued) |
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System * Discuss in detail the functions of the existing system used by the company including its strengths and weaknesses. * Provide the Data Flow Diagram (DFD) that illustrates the flow of data and information used in the existing system. * For the DFD include only the Context Diagram and Level 0. Level n could be seen if it will undergo changes in the new system. Take note of the balancing rule (balance inputs and outputs when decomposing a process) New
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describes the finalize system which is Employee Information System. System Analysis -Requirement of Definition System Design -Interface design -Data flow diagram -System development life cycle -System architecture System Analysis -Requirement of Definition System Design -Interface design -Data flow diagram -System development life cycle -System architecture Employee Information System Employee Information System Knowledge Requirement -Employee Information system
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