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Systems Analysis and Design in a Changing World, Tuesday, Jan 30

Systems Analysis and Design in a Changing World, Tuesday, Jan 30. Today’s Schedule. System Requirements Test #1, Thursday, February 8 Continue Reading Chapter 4, page 120 System Stakeholders. Learning Objectives. Describe the activities of the systems analysis life cycle phase

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Systems Analysis and Design in a Changing World, Tuesday, Jan 30

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  1. Systems Analysis and Design in a Changing World, Tuesday, Jan 30

  2. Today’s Schedule • System Requirements • Test #1, Thursday, February 8 • Continue Reading Chapter 4, page 120 System Stakeholders

  3. Learning Objectives • Describe the activities of the systems analysis life cycle phase • Explain the effect of business process reengineering on activities of the analysis phase • Describe the difference between functional and nonfunctional system requirements

  4. Overview • Analysis phase of SDLC skills needed • Fact finding for investigation of system requirements • Analyst should learn details of business processes and daily operations • Analyst should become as knowledgeable as business domain users to build credibility • Analyst brings fresh perspective to problem • Modeling of business processes based on system requirements

  5. The Analysis Phase in More Detail • Gather information • Define system requirements • Functional and nonfunctional • Prioritize requirements • Prototype for feasibility and discovery • Generate and evaluate alternatives • Review recommendations with management

  6. The Activities of the Analysis Phase

  7. Activities of the Analysis Phase and Their Key Questions (Figure 4-2)

  8. Business Process Reengineering and Analysis • Fundamental strategic approach to organizing company • Streamlines internal processes to be as efficient and effective as possible • Questions basic assumptions for doing business and seeks to find a better way • Uses IT as BPR enabler • Systems analyst may discover opportunities for process improvement • Any project may include components of BPR

  9. Zachman Framework for Enterprise Architecture (Figure 4-3)

  10. System Requirements • New system capabilities and constraints • Functional requirements • Activities system must perform (use cases) • Based on procedures and business functions • Documented in analysis models • Nonfunctional requirements • Technical environment or performance objectives • Usability, reliability, and security requirements

  11. For Thursday, February 1 • Install Visual Paradigm, Community Edition • Continue Reading Chapter 4, page 120 System Requirements

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