Systems%20Analysis%20and%20Design%20in%20a%20Changing%20World,%20Tuesday,%20Jan%2030

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

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Todays Schedule

• System Requirements
• Test 1, Thursday, February 8
• Continue Reading Chapter 4, page 120 System
  Stakeholders

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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

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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

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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

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

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Zachman Framework for Enterprise Architecture
(Figure 4-3)
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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

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For Thursday, February 1

• Install Visual Paradigm, Community Edition
• Continue Reading Chapter 4, page 120 System
  Requirements