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SYSTEMS ANALYSIS & DESIGN

SYSTEMS ANALYSIS & DESIGN. PHASE 1 SYSTEMS PLANNING Preliminary Investigation. Phase 1: Systems Planning Preliminary Investigation Systems planning tasks Examine the systems request Conduct a preliminary investigation Determine whether further development is warranted. Introduction.

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SYSTEMS ANALYSIS & DESIGN

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  1. SYSTEMS ANALYSIS & DESIGN PHASE 1 SYSTEMS PLANNING Preliminary Investigation

  2. Phase 1: Systems Planning Preliminary Investigation Systems planning tasks Examine the systems request Conduct a preliminary investigation Determine whether further development is warranted Introduction

  3. The Strategic Planning Process

  4. The Strategic Planning Process • The impact of technology • Creating entirely new industries • Change will be constant

  5. Information Systems Projects • Starting point is a systems request • Reasons for systems projects • Improved service • Better performance • More information • Stronger controls • Reduced cost

  6. Internal User requests Top-management directives Existing systems Information systems department External Software and Hardware Vendors Technology Suppliers Customers Competition The Economy Government Sources of systems projects

  7. Information Systems Projects • Request form and procedure • Streamlines the process • Ensures consistency • Must be easy to understand and use • Must include clear instructions

  8. Evaluation of Systems Requests • Responsibility for evaluating systems requests • A group of key managers and users • A single individual

  9. Evaluation of Systems Requests • Evaluation of projects • Systems review committee tasks: • Evaluate requests • Set priorities • Assess feasibility

  10. Evaluation of Systems Requests • Feasibility study uses three main yardsticks: • Operational feasibility • Technical feasibility • Economic feasibility

  11. Evaluation of Systems Requests • Determining feasibility • First step is a determination of feasibility • Goal is to identify nonfeasible projects as soon as possible • Feasibility can change over time

  12. Criteria Reduce costs Increase revenue Produce more information or better results Serve customers and the organization better Reasonable time frame and lasting results Resources available Necessary or discretionary Tangible or intangible factors Evaluation of Systems Requests

  13. Preliminary Investigation Objectives • Purpose • To decide whether to continue the project • Objectives for a preliminary investigation 1. Understand the problem 2. Define the project scope and constraints 3. Identify the benefits 4. Estimate the time and costs 5. Report to management

  14. Preliminary Investigation Steps • Steps in a preliminary investigation 1. Obtain authorization to proceed 2. Identify the necessary information 3. Perform fact-finding to gather the required information 4. Analyze the information 5. Present results and recommendations to management

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