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COMPUTERS, - - Coggle Diagram

- - - - Steering Committee
        1) Ensure project is authorised
        2) Timetables adhered to
        3) Ensure budgets are adhered to
        4) Ensure quality requirements are met
      - Departments involved:
        User Department - ensure departmental requirements and ensure proper controls (auditors)
        Data processing department - Ensure technical soundness and compatibility and test
        Quality control Department - Correct standard of design, ensure proper testing, ensure programme is documented
      - Project Team Ensure:
        
        Day to day management
        
        development of project in stages
        
        prepare timetables
        
        Authorisation after feasibility study
    - - Define the way the system must work
      - Traditional Method:
        written systems specification by means of discussions between data processing dept. and users
        Prototype System:
        design prototype
        allow user dept to test
        refine through prototypes
    - - Ensure:
        
        System interacts with existign systems
        
        Control-related programmed procedures built
        
        Supervisions over design
        
        System compliance
        
        Porgram library and not LIVE DATA
    - - Carried out in 3 phases:
        1) Program testing - checking logic of the program to specs
        2) System testing - all individual programs link together
        3) Live testing
        Parallel Running: New system at same time as old system (cost)
        Pilot Running: Introduce system for only a small portion
    - - 1) Planning and Prep.
        
        Timetables
        
        Methods
        
        Cut off dates
        
        Conversion prep
        
        Training
        
        Balance files on old system
        
        Prepare
        
        2) Control over conversion of data by data control
        
        Supervision by Snr Manag.
        
        Auditors
        
        3) Update System Documentation
        
        System flowcharts
        
        System descriptions
        
        Operating Manuals
        
        4) Testing
        
        Balancing
        
        3rd party confirmations
        
        Exception reports
        
        Parallel Comparison
        
        Manual comparison
        
        Approval by users
        
        5) Back up of new system
        6) Port impliment review
  - - - Discussion with users
        Observe package
        Questioning other users
        Offerings
        Freedom from errors
        Speed and efficiency
        Ease of use
        Support quality
    - - Testing
        
        Independent tetsing
        Review of experiences
      - Implimentation
        
        Involved:
        users
        data processing
        management
        quality assurance
    - - Meet user needs
        
        Find packages compared to needs
        
        Minimum changes to package
        
        Future updates
        
        Maintenance service
    - - Quick to impliment
        
        Lower cost
        
        tested
    - - Supplier maintenance
        
        Too general
        
        Changes difficult
        
        Overseas (different to SA)