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Systems life cycle (Development and testing (Testing strategies (There are…
Systems life cycle
Development and testing
Development
Testing strategies
There are four catagories
normal
abnormal
extreme
live
Evaluation
changes that need be made
identify any limitations of the system
identify any necessary improvements that need to be made
evaluate the user’s responses to using the new system
compare test results from the new system with results from the old system
compare performance of the new system with performance of the old system
observe users performing set tasks (compare old with new)
measure the time taken to complete tasks (compare old with new)
interview users to gather responses about how well the new system works
give out questionnaires to gather responses about the ease of use of the new system
identify and necessary improvements that need to be made
evaluation may lead to two things happening
update of hardware
update of software
analysis
four common methods
observation
questionnaires
interviews
looking at existing paperwork
Design
Design stage
Data capture forms
Screen displays and printed reports
System flowcharts
Verification
Validation
File structures
Design and testing strategy/plan
implementation
Implementation method
direect
Parallel
Pilot
Phased
Documentation
two types of documentation
User documentation
Technical documentation