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MSS Development Issues

MSS Development Issues. Chapter 7 MSS development: Approaches and techniques, CF & SR. Outline. MSS development approaches techniques for use in MSS development conventional development techniques Special MSS development techniques. MSS development .

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MSS Development Issues

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  1. MSS Development Issues Chapter 7 MSS development: Approaches and techniques, CF & SR Ibrahim Elbeltagi Info 2007

  2. Outline • MSS development approaches • techniques for use in MSS development • conventional development techniques • Special MSS development techniques Ibrahim Elbeltagi Info 2007

  3. MSS development Need to consider normal IS issues such as: • Feasibility- economic, social,, technical • Project planning and control • Development approach and methodology /techniques • Changeover • Support and maintenance • Post implementation review Ibrahim Elbeltagi Info 2007

  4. MSS Development Approaches • Traditional approach • Prototyping • Evolutionary prototyping vs. throwaway prototyping • Evolutionary approach • Hybrid approach Ibrahim Elbeltagi Info 2007

  5. MSS Development Approaches Traditional approach • Requirements specification • Design • implementation Ibrahim Elbeltagi Info 2007

  6. MSS Development Approaches Prototyping within IS development According to Skidmore and Wore, a prototype is: “..alive working system and not just a paper-based design. Users can test its operations, and explore its facilities and so do not have to rely upon written description” Ibrahim Elbeltagi Info 2007

  7. MSS Development Approaches The Hybrid approach • Both throwaway prototyping and evolutionary prototyping can be employed at appropriate stages of the traditional approach. Ibrahim Elbeltagi Info 2007

  8. Related to MSS functionality • Can develop MSS using either a traditional approach,and evolutionary approach or a hybrid approach • Situation circumstances determine • In general, suitability trend?: • Information handling support? • Passive support of decision making? • Active support of decision making Ibrahim Elbeltagi Info 2007

  9. Techniques for use in MSS development • Techniques provide a structured approach to performing one or more development activities • What technique, assess where it might be applied to MSS development-active support, passive support, etc. Ibrahim Elbeltagi Info 2007

  10. “Conventional” Development Techniques and MSS Development Soft Systems Methodology Ibrahim Elbeltagi Info 2007

  11. Fact-Finding Techniques • Remembering the techniques: • S . . . (for Sampling) • Q . . . (for Questionnaires) • I . . . (for Interviewing) • R . . . (for Reading or Research) • O . . . (for Observation) • Not in order of importance, or sequence in the project Ibrahim Elbeltagi Info 2007

  12. Conventional” Development Techniques and MSS Development • Entity Relationship (E-R) modelling • Flow Charts • OO Analysis and design techniques • Data flow diagramming Ibrahim Elbeltagi Info 2007

  13. Special MSS Development Techniques • Keen’s Value Analysis • Sprague and Carlson’s ROMC • CSF/KPI Hierarchy Diagramming Ibrahim Elbeltagi Info 2007

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  16. Special MSS Development Techniques • Structure situation analysis • Silver’s MSS description Language Ibrahim Elbeltagi Info 2007

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