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System Data Life Cycle (Analysis (Research or collect data from the…
System Data Life Cycle
Analysis
Research or collect data from the current system
Describe the current system
Identify the problems with the current system
Agree the objectives with the clients
Identify and agree customer requirements
Interpret customer requirements
Produce a cost-benefit analysis
Identify suitable hardware and software
Produce a data flow diagram
Design
Design the data capture forms/input forms
Design the screen layouts
Design outputs in the form of screen displays and printed reports
Produce system flowcharts and/or pseudo code
Select/design validation rules that need to be used
Design/agree on file structures
Produce any algorithms or program flowcharts
Design a testing strategy/plan
Development and testing
If the system contains files then the file structure would need to be finalised at this stage.
It is important that the correct data is stored in files
The data populating the files/database is at least of the right type
The system being developed will have some form of user interface
Software often developed in modular form
Modular allows the software to be broken down into smaller parts
Implementation
There is a need to train staff on new system
Transfer paper files or electronic files to the new system
Documentation
Evaluation