TYPES OF DATA FLOW DIAGRAM: LOGICAL DFD PHYSICAL DFD Data Flow Diagrams (DFDs) are categorized as either logical or physical. A logical DFD focuses on the business and how the business operates. It describes the business events that take place and the data required and produced by each event. On the other hand‚ a physical DFD shows how the system will be implemented. Design Feature Logical Physical What the model depicts How the business operates How the system will be implemented
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Key Concepts in Web Authoring What is HTML? HTML (Hypertext Markup Language) is an authoring language that sets up web pages that can be viewed on the World Wide Web. The Development of HTML versions and backwards compatibility issues: HTML 1: In 1980 Tim Berners-Lee created a system to use and share documents and later on in 1991 lead to “HTML tags” also known as the first HTML. HTML 2: In 1993 browsers added their own tags to HTML and this caused confusion. Dan Connolly and colleagues
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System Analysis and Design/ Tools for systems analysts Learning Objectives Learning Objectives What are Data Flow Diagrams (DFDs)? Why they are useful? How are they developed? How to level DFDs? Good style conventions in developing DFDs Difference between Logical and Physical DFDs Tools available to draw DFDs V. Rajaraman/IISc. Bangalore //V1/June 04/1 System Analysis and Design/ Tools for systems analysts Motivation Motivation WHY DFD ? Provides an overview of
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releasing more energy and waves of shorter wavelengths. 3. a. Draw the energy-level diagram and write the electronic configuration for zirconium (element 40). (3 marks) Energy-level diagram for zirconium is drawn below: 4d 5s 4p 3d 4s 3p 3s 2p 2s 1s Electronic configuration for zirconium is given below: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 b. Use the diagram to explain why the Zr4+ ion exists. (2 marks) When the outer orbitals are filled with
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Patient leaves If Follow Up appointment requires then make an Appointment Date‚ Patient leaves Question 2: Draw the Event Process Chain Diagram for a Business Process based on the following Activities. The following are the Events and Functions for a Business Process. Develop an Event Process Chain (EPC) Diagram by using the three connectors OR‚ AND‚ XOR. Activities: If the customer order is received‚ check for the availability‚ either the articles are available or
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“It is not often that someone comes along who is a true friend and a good writer.” “After all‚ what’s a life‚ anyway? We’re born‚ we live a little while‚ we die.” “You have been my friend. That in itself is a tremendous thing. I wove my webs for you because I liked you. After all‚ what’s a life‚ anyway? We’re born‚ we live a little while‚ we die. A spider’s life can’t help being something of a mess‚ with all this trapping and eating flies. By helping you‚ perhaps I was trying to lift up
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Chapter 1: Introduction 1.1 Introduction: Web based learning system Web-based learning system is gaining popularity in education field for the twenty-first century. It has been widely developed and adopted in most of the university. The learning system is not limited by time or place. Thus it can provide students with a learning environment that is more flexible and convenient. It also helps students to learn efficiently‚ develop their professional expertise quickly‚ and advance professionally
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Chemistry SCH4U-B Lesson 1 Key Questions 1. The development of MRI imaging technology is one useful spinoff of basic research into the structure of the atom. Research‚ however‚ is expensive. Many people argue that the high cost of research outweighs its potential benefits. Provide one argument for‚ and one argument against increasing current
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Create an activity diagram for the following system. Of-the-Month Club (OTMC) is an innovative young firm that sells memberships to people who have an interest in certain products. People pay membership fees for one year and each month receive a product by mail. For example‚ OTMC has a coffee-of-the-month club that sends members one pound of special coffee each month. OTMC currently has six memberships (coffee‚ wine‚ beer‚ cigars‚ flowers‚ and computer games)‚ each of which costs a different amount
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Outline Introduction: Nowadays‚ most people in the world use the internet. People can get all kinds of information from around the world through the Internet and life in the world easy to communicate with others. The Internet seems to be at first glance dream tool. However‚ the Internet is not always a bright side. It can be harmful‚ when people use it and little care. Thesis: Government should regulate the internet‚ there are few reasons here that government should regulate the internet more
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