1 Chapter 1 Introduction to Systems Analysis and Design

2 The Impact of Information Technology The Role of Systems Analysis and Design Systems Analysis and Design Step-by-step process for developing high- quality information systems Systems Analyst Plan, develop, and maintain information systems

3 Information System Components

4 Understanding The Business Business Profile Overview of a company Business Models Graphical representation of one or more business processes

5 Systems Development Tools and Techniques Modeling A systems analyst can describe and simplify an information system by using a set of business, data, object, and process models. Prototyping Early working version of an information system Computer-Aided Systems Engineering (CASE) Tools CASE uses powerful software to help systems analysts develop and maintain information systems

6 Systems Development Methods Structured Analysis traditional systems development technique Uses the systems development life cycle to plan, analyze, design, implement, and support an information system

7 Systems Development Methods Object-oriented ( O-O ) analysis combines data and the processes that act on the data into things called objects Systems analysts use O-O to model real-world business processes and operations

8 Systems Development Methods Joint Application Development and Rapid Application Development JAD – Team based fact finding RAD – compressed version of the entire process

9 The Systems Development Life Cycle SDLC used to plan and manage the systems development process. It includes the following steps: 1. Planning 2. Analysis 3. Design 4. Implementation 5. Operation 6. Support

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11 THE END Systems Analysis and Design 5 th edition Gary B. Shelly, Thomas J. Cashman, Harry J. Rosenblatt ISBN: © 2003 Publish date: March 10, pages