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System Data Life Cycle (Analysis (Produce a data flow diagram, Hardware…
System Data Life Cycle
Analysis
Produce a data flow diagram
Hardware and Software
Cost-benefit
Customer requirements
Agree to objectives with the clients
Research
Research
Describe current system
Current systems
Feasibility Study
Observation
Questionnaires
Interviews
looking at existing paperwork
Design
Data capture
Screen Layouts
Outputs
validation rules
file structures
strategy
algorithms
screen displays
Documentation
user
technical
Evaluation
Final solution with the original task
Identify any limitations of the system
Questionnaires
Development
Testing Strategies
normal
abnormal
extreme
live