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Learn the phases of system life cycle from feasibility study to maintenance in project management and ICT projects. Get insights on system investigation methods and implementation strategies. Understand the importance of analysis, design, testing, training, evaluation, and maintenance.
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Project planning The systems life cycle
Feasibility study • Initial study • Looks to see if a new system can be built • At reasonable cost • In reasonable time
Feasibility study Fact finding finds out what people want from the new system by using: • Questionnaires • Interviews • Observation • Inspection of records
Analysis • Identifies the problems to be solved • Looks in detail at the current system • Understands the existing system
Design • Designs the system in line with the user requirements • Chooses input, storage and output methods • Decides on the processes • Designs input/output screens and layouts spreadsheets, databases, etc. • Designs validation tests • Designs test plans
Implementation • Produces a working solution according to the design • Produces framework for databases, spreadsheets, etc. • Programmers produce the program code • Uses software tools to produce a solution • Produces the working system according to the design
Testing • Test plan created during design stage is used to test the system • Test data is entered • Results are compared with what was expected • Remedial action is taken to correct faults • Validation tests are tested
Training and documentation • User training on how to use the new system • Documentation to help the user is created
Evaluation and monitoring • Checking user requirements and performance criteria have been met • Assessment of client/user satisfaction • Setting up review cycle so new system is periodically reviewed
Maintenance • Set up help-desk facilities • Add extra functions when required • Improve performance • Investigate system crashes to prevent them happening again
Project Management • Some in charge of the project – Project Manager • Work divided among team members • Appropriate task for their skills • Conflicts sorted out • Budget managed • Reviewed regularly • Work produced is fit for purpose and deadlines are met
ICT in projects • Production of computer games • Business • Education • Cultural interaction
System investigation methods • Questionnaires • Interviews • Observation • Inspection of records
System implementation strategies • Direct changeover • Parallel changeover • Phased changeover • Pilot changeover