Lecture Chapter 6: The traditional approach to requirements

Lecture "Chapter 6: The traditional approach to requirements" provides students with the knowledge: Data flow diagrams, DFD fragment from the RMO case, context diagrams, DFD fragments, event-Partitioned system model, DFD fagments for course,... Invite you to consult.

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Lecture Chapter 6: The traditional approach to requirements 6 6 Learning Objectives Chapter 6:  Explain how the traditional approach and the The Traditional Approach object-oriented approach differ when an event occurs to Requirements  List the components of a traditional system and Systems Analysis and Design in a Changing the symbols representing them on a data flow World, 3rd Edition diagram  Describe how data flow diagrams can show the system at various levels of abstraction Systems Analysis and Design in a Changing World, 3rd Edition 2 6 6 Learning Objectives (continued) Overview  Develop data flow diagrams, data element  What the system does what an event occurs: definitions, data store definitions, and process activities and interactions descriptions  Traditional structured approach to representing activities and interactions  Develop tables to show the distribution of  Diagrams and other models of the traditional processing and data access across system approach locations  RMO customer support system example shows  Read and interpret Information Engineering how each model is related models that can be incorporated within traditional  How traditional and IE approaches and models structured analysis can be used together to describe systemSystems Analysis and Design in a Changing World, 3rd Edition 3 Systems Analysis and Design in a Changing World, 3rd Edition 4 6 6 Traditional and Object-Oriented Views of Requirements Models for the Traditional Activities and OO ApproachesSystems Analysis and Design in a Changing World, 3rd Edition 5 Systems Analysis and Design in a Changing World, 3rd Edition 6 6 6 Data Flow Diagrams Data Flow Diagram Symbols  Graphical system model that shows all main requirements for an IS in one diagram  Inputs / outputs  Processes  Data storage  Easy to read and understand with minimal trainingSystems Analysis and Design in a Changing World, 3rd Edition 7 Systems Analysis and Design in a Changing World, 3rd Edition 8 6 6 DFD Fragment from the RMO Case DFD Integrates Event Table and ERDSystems Analysis and Design in a Changing World, 3rd Edition 9 Systems Analysis and Design in a Changing World, 3rd Edition 10 6 6 DFD and Levels of Abstraction Lay ...