Analysis & Design Chapter 5: Data and Process Modeling 1. Describe data and process modeling, and name the main data and process modeling techniques. Data and process modelling uses a variety of techniques to represent an information system and processes and data flow contained within the information system. Methods of data and process modelling can include DFD's (Data Flow Diagrams), object modelling and entity-relationship diagrams. (https://ict108businessinformatics.wikispaces
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Questions) 1. Describe data and process modeling and name the main data and process modeling techniques. During data and process modeling, a system analyst develops graphical models to show how the system transforms data into useful information. The end product of the data and process modeling is a logical model that will support business operations and hopefully meets user needs. Data and process modeling involves three main tools: data flow diagrams, a data dictionary, and process descriptions
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*If you are submitting the form electronically (via MyLO) then it does not have to be signed, but the details for each student must be included. By submitting the form into your account you are declaring your agreement with the above statement about plagiarism. Statement on Plagiarism and Academic Integrity Plagiarism is a form of cheating. It is taking and using someone else's thoughts, writings or inventions and representing them as your own, for example: • using an author's words without
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Modeling Definition and Concepts. . . . . . . . . 5 Traditional Approach Logical Models . . . . . . . . 7 Object Oriented Approach Logical Models . . . . . . 9 Chapter Three Current Topics in Data Modeling . . . . . . . . . . . 12 Bibliography . . . . . . . . . . . . . . . . . . 14 CHAPTER ONE Abstract Today’s organizations
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1. (TCO 3) The impertinence characteristic of a good systems analyst is represented by which of the following statements? (Points : 3) | You must challenge yourself to look at the organization in new ways. You should question everything. Assume anything is possible, and eliminate the infeasible. Your role is to find the best solution to a business problem. Every fact must fit with every other fact. | Question 2. 2. (TCO 3) Which of the following is
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8Data Flow Diagrams Symbols There are some symbols that are used in the drawing of business process diagrams (data flow diagrams). These are now explained, together with the rules that apply to them. Flow diagrams in general are usually designed using simple symbols such as a rectangle, an oval or a circle depicting a processes, data stored or an external entity, and arrows are generally used to depict the data flow from one step to another. A DFD usually comprises of four components. These four
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Analyse data and document client requirements Inside this reading: Analysing client requirements 2 Data flow diagrams 3 Data dictionaries 10 CASE tools 14 Confirming client requirements 15 Documenting client requirements 22 Summary 26 Analysing client requirements Before you can start to analyse the information you have gathered you should think about what you are trying to achieve. The client has presented you with a business problem. In
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Data: Raw material Data collection costs money Collect only necessary and sufficient data Data is generally used by machines Data is useless unless it is process to create information Information: Processed data Data process by machines giving information Information is used to run an organization efficiently Information used by managers to initiate actions TYPES OF INFORMATION Operational Information - used to day to day operations Example information needed by a shopkeeper: Daily sales account
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are put through PURPOSE OF THE SYSTEM 1.SECURITY: There is a lot of security of data on this content management system. One cannot open our system without knowing the password. Immediately after opening login screen will appear on screen. Only after entering the correct username and password user can operate our system. 2.REFERENTIAL INTEGRITY: User cannot change the date in the transaction files.Addition of data can be done only on the master files date in transaction files cannot be entered until
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MERU UNIVERSITY OF SCIENCE AND TECHNOLOGY SCHOOL OF INFORMATION TECHNOLOGY AND ENGINEERING DEPARTMENT OF IT AND COMPUTER SCIENCE TITLE: KIONYO TEA FARMERS MANAGEMENT INFORMATION SYSTEM NAME: AYIBU OMWOYO VINCENT REG. NO: CS591-0131/2012 COURSE: BACHELOR OF SCIENCE COMPUTER SCIENCE PROJECT PROPOSAL IS SUBMITTED TO THE DEPARTMENT OF INFORMATION TECHNOLOGY AND COMPUTER SCIENCE IN PARTIAL FULFILLMENT FOR THE AWARD OF BACHELOR
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