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Chapter 7-Systems Life Cycle (Design (Data Capture Forms (Paper Based Data…
Chapter 7-Systems Life Cycle
Analysis
Feasibility Study
Data Flow Diagram
Booking Flights
Methods of Research
Observation
Questionnaires
Interviews
Looking at existing paperwork
Design
Data Capture Forms
Paper Based Data Capture form
Screen Displays & printed reports
System Flowcharts -to show how data flows through a system
Verification
Validation
Validation checks
Range Check
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Files Structure
Data Dictionary
Design & Testing strategy plan
Development & Testing
Testing Strategies
software often formed in modular form
Modul Testing
normal,abnormal,extreme & live
Normal : data that is acceptable
Extreme : data at the limits of acceptability
abnormal : data outside the limits of acceptability
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Development & Testing
Development
Testing strategies
Software is often developed in modular form
Implementation
The Implementation Stage
changeover
Methods of changeover
Direct
Parallel
Pilot
Phased
Impact of changeover methods
Documentation
User documentation : designed to help users to learn how to use the software/system
Technical Documentation
Evaluation
Evaluation