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6 Stages of the Traditional Systems Life Cycle project definition systems study design

6 Stages of the Traditional Systems Life Cycle project definition systems study design programming installation post-implementation. 4 Steps in Prototyping identify preliminary requirements develop a working prototype use the prototype; and refine

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6 Stages of the Traditional Systems Life Cycle project definition systems study design

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  1. 6 Stages of the Traditional Systems Life Cycle • project definition • systems study • design • programming • installation • post-implementation

  2. 4 Steps in Prototyping • identify preliminary requirements • develop a working prototype • use the prototype; and refine • enhance the prototype

  3. Software Package-Based Development • Use the software vendor's response to a Request for Proposal (RFP) about package features

  4. End-User/Fourth-Generation Development Tools: • personal computer tools • query languages • graphics languages • report generators • application generators • very high-level programming languages • application software packages

  5. Outsourcing • Outsourcing is the process of handing over some or all of a function to an external vendor.

  6. Information Systems Threats • disaster, such as fire or electrical failure • hardware malfunction • software errors • user errors • computer crime • computer abuse

  7. Computer Crime • monetary theft • theft of services, information, or computer programs • alteration of data • damage to software • trespassing

  8. IS General Controls

  9. IS Application Controls

  10. Information Systems Security • Data security • Hardware security • Network security • Recovery plan

  11. Information Systems Quality • Using development methodology • Using quality measurements, e.g., response time, # of bugs per 1000 lines of code • Using programming standards • Using testing standards • Using development tools, e.g, CASE • Using quality audits

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