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Systems Design, Implementation, Maintenance, and Review

Systems Design, Implementation, Maintenance, and Review. Chapter 13. Chapter 13 Outline. Systems Design Systems Implementation Systems Maintenance Systems Review. Systems Design. Top Uses for New Systems in Various Industries. Logical Design.

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Systems Design, Implementation, Maintenance, and Review

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  1. Systems Design, Implementation, Maintenance, and Review Chapter 13 Principles of Information Systems, Sixth Edition

  2. Chapter 13 Outline • Systems Design • Systems Implementation • Systems Maintenance • Systems Review Principles of Information Systems, Sixth Edition

  3. Systems Design Principles of Information Systems, Sixth Edition

  4. Top Uses for New Systems in Various Industries Principles of Information Systems, Sixth Edition

  5. Logical Design • Output design: types, format, content, frequency • Input design: types, format, content, frequency • Process design: calculations, comparisons, manipulations • File & database design: capabilities and organization • Telecommunications design: high-level network description • Procedures design: automated & manual • Controls & security design • Personnel & job design Principles of Information Systems, Sixth Edition

  6. Physical Design • Hardware design • Software design • Database design • Telecommunications design • Personnel design • Procedures and controls design Principles of Information Systems, Sixth Edition

  7. Special System Design Considerations • Procedures for signing on • Interactive processing • Interactive dialog • Preventing, detecting, and correcting errors Principles of Information Systems, Sixth Edition

  8. The Scope of Design Principles of Information Systems, Sixth Edition

  9. Procedures for Signing On Principles of Information Systems, Sixth Edition

  10. Interactive Processing Principles of Information Systems, Sixth Edition

  11. Emergency Alternate Procedures & Disaster Recovery • Telecommunications backup • Personnel backup • Hardware backup • Software and database backup Principles of Information Systems, Sixth Edition

  12. Hardware Backup • Disaster recovery plans • Hot site • Cold site Principles of Information Systems, Sixth Edition

  13. Software & Database Backup • Selective backups • Incremental backups • Image log Principles of Information Systems, Sixth Edition

  14. Preventing, Detecting, and Correcting Errors Principles of Information Systems, Sixth Edition

  15. Object-Oriented Design Principles of Information Systems, Sixth Edition

  16. Systems Controls • Deterrence controls • Input controls • Processing controls • Output controls • Database controls • Telecommunications controls • Personnel controls Principles of Information Systems, Sixth Edition

  17. Request for Proposal Principles of Information Systems, Sixth Edition

  18. Financial Options Principles of Information Systems, Sixth Edition

  19. Cost/Benefit Analysis Principles of Information Systems, Sixth Edition

  20. Cost/Benefit Analysis Principles of Information Systems, Sixth Edition

  21. Evaluation Techniques • Group consensus • Benchmark tests • Cost/benefit analysis • Point evaluation Principles of Information Systems, Sixth Edition

  22. The Final Evaluation Principles of Information Systems, Sixth Edition

  23. Point Evaluation Principles of Information Systems, Sixth Edition

  24. Freezing Design Specifications Principles of Information Systems, Sixth Edition

  25. The Design Report Principles of Information Systems, Sixth Edition

  26. Systems Implementation Principles of Information Systems, Sixth Edition

  27. Systems Implementation Principles of Information Systems, Sixth Edition

  28. Acquiring Software: Make or Buy Software? • Externally developed software • Lower cost • Lower risk • Ease of installation Principles of Information Systems, Sixth Edition

  29. Make or Buy Software • Steps • Review needs, requirements, and costs • Acquire software • Modify or customize software • Acquire software interfaces • Test and accept the software • Maintain the software Principles of Information Systems, Sixth Edition

  30. In-House Developed Software • Chief programmer teams • The programming life cycle Principles of Information Systems, Sixth Edition

  31. Chief Programmer Teams Principles of Information Systems, Sixth Edition

  32. The Programming Life Cycle Principles of Information Systems, Sixth Edition

  33. Tools & Techniques for Software Development • Cross-platform development • Integrated development environments • CASE tools • Structured design • Structured programming • Structured walkthroughs Principles of Information Systems, Sixth Edition

  34. Characteristics of Structured Programming Principles of Information Systems, Sixth Edition

  35. Structured Design and Programming Principles of Information Systems, Sixth Edition

  36. Structured Design and Programming Principles of Information Systems, Sixth Edition

  37. Structured Walkthroughs Principles of Information Systems, Sixth Edition

  38. Additional Implementation Activities • Acquiring database and telecommunication systems • User preparation • Hiring and training IS personnel • Site preparation • Data preparation Principles of Information Systems, Sixth Edition

  39. Additional Implementation Activities • Installation • Testing • Unit testing • System testing • Volume testing • Integration testing • Acceptance testing Principles of Information Systems, Sixth Edition

  40. Testing Principles of Information Systems, Sixth Edition

  41. Start-Up Approaches Principles of Information Systems, Sixth Edition

  42. Start-Up Approaches Principles of Information Systems, Sixth Edition

  43. Systems Maintenance Principles of Information Systems, Sixth Edition

  44. Reasons for Maintenance • Changes in business processes • Requests from stakeholders, users, or managers • Errors in the program • Technical and hardware problems • Corporate mergers & acquisitions • Government regulations • Changes in the operating system or hardware Principles of Information Systems, Sixth Edition

  45. Types of Maintenance • Slipstream upgrade • Patch • Release • Version Principles of Information Systems, Sixth Edition

  46. The Financial Implications of Maintenance Principles of Information Systems, Sixth Edition

  47. The Relationship Between Maintenance and Design Principles of Information Systems, Sixth Edition

  48. Systems Review Principles of Information Systems, Sixth Edition

  49. Types of Review Procedures Principles of Information Systems, Sixth Edition

  50. Mission Goals Hardware/software Database Telecommunications IS personnel Control Training Costs Complexity Reliability Efficiency Response time Documentation Factors to Consider During Systems Review Principles of Information Systems, Sixth Edition

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