DATA FLOW DIAGRAM Group#7 Nugao Oserin Obongen The Data Flow Diagram (DFD) • a graphical representation of the flow of data through an information system. It enables you to represent the processes in your information system from the viewpoint of data. The DFD lets you visualize how the system operates‚ what the system accomplishes and how it will be implemented‚ when it is refined with further specification. • Data flow diagrams are used by systems analysts to design information-processing systems
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How to : Data Flow Diagrams (DFDs) Data Flow Diagrams (DFDs) Data flow diagram (DFD) is a picture of the movement of data between external entities and the processes and data stores within a system Order CUSTOMER Status Message Status Data 2.0 Shipping Confirmation In-Stock Request WAREHOUSE 1.0 Shipping Order Check Status Order Data D1 Pending Orders 3.0 Issue Status Messages Order Data Payment Invoice Manage Accounts Receivable 5.0 Accounting Data Accounts Receivable Data
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4.6.2 Class Diagram: • In software engineering‚ a class diagram in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system’s classes‚ their attributes‚ operations (or methods)‚ and the relationships among objects. • The class diagram is the main building block of object oriented modeling. • It is used both for general conceptual modeling of the systematic of the application‚ and for detailed modeling translating
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English 102 4 May 2013 Graphic Novels in Education Graphic novels and comic books have been some of the most debated topics recently in many different areas. Many people think that they could be helpful in education‚ while some others completely disagree. Some people think they are childish‚ and some think they require just as much comprehension as long‚ fictional novels. However‚ despite all the criticism graphic novels often get‚ the genre is growing recently. Many things have led to this rise
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Entity Relationship Diagram The bellow diagram is what is refered to as an "Entity Relationship Diagram". Its purpose is to show the relationship between different data in the hotel management program ‚ and the actions that are performed on it. And how data from different objects relate to each other. Legend The Data Entities represent data that will need to be stored on the system‚ in general terms. The Relationships represent actions that will occur to the Data Entities‚ or Weak Entities.
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Frank and Alex in a tug-of-war • Draw the free body diagram on the back of your sheet or your notes for Frank winning (accelerating away) a tugof-war with Alex – Draw Frank and Alex as separate objects‚ with forces acting on each – How many forces are there on each? – Identify Newton’s 3rd law pairs – Identify Newton’s 2nd law relationships 1 Frank and Alex in a tug-of-war • Draw the free body diagram on the back of your sheet or your notes for Frank winning (accelerating away)
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The Iron-Carbon Diagram There are two iron-carbon equilibrium diagrams: - stable iron-graphite Fe-Gr - metastable iron-cementite Fe-Fe3C The stable condition usually takes a very long time to develop. The metastable diagram is of more interest. Fe3C iron carbide called cementite because it is hard. Following phases exist on Fe-Fe3C diagram: - liquid solution of iron and carbon (L) - ferrite ( ) – an interstitial solid solution of carbon in Fe (bcc). At room temperature ferrite is ductile but
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1. What is an Entity Relationship Diagram? An entity relationship diagram is a graphical representation of an organisation’s data storage requirements. Entity relationship diagrams are abstractions of the real world which simplify the problem to be solved while retaining its essential features. Entity relationship diagrams are used to: identify the data that must be captured‚ stored and retrieved in order to support the business activities performed by an organisation; and identify the data required
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Graphic Design Latanya Green HIS220 May 2‚ 2015 Prof. T Graphic Design The term graphic design can be dated back to 1922 or before. William Addison Dwiggins started this term and in the 1950’s Yale started a Graphic Design program but it wasn’t until 1993 when the‚ profession was perfected by a Paul Rand (printmag). Rand is known for pioneering advertising and branding (fastcodesign). Dwiggins’ referred to himself as a graphic designer in-order to set himself apart from the rest of those
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Introduction to Graphics and Design Unit 1: Lesson # 1 (of 10) P A G E L A Y O U T CU Student: Tamara Fritz Cooperating Teacher: Ron Dexter Content/Endorsement Area: Graphic Communications & Design Grade Level: 10th‚ 11th‚ 12th School Site: Statesboro High School Supervisor: Sandy Bowman Unit Topic: Page Layout Daily Topic: Measurement Pre-Planning: Academic Foundations/Standards: HS.MP.1 Make sense of problems and persevere in solving them. HS
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