System Life Cycle
Analysis
Design
Development and testing
Implementation
Documentation
Evaluation
Researching an existing system
Observation
Questionnaires
Interviews
Looking at existing paperwork
Feasibility Study
Description of existing system
Criteria
Proposed solution
Terms of reference
Data Flow Diagram
shows
data flows
input
output requirements
processing
types of data storage needed
data capture forms
Screen displays and printed reports
System flowcharts
Verification
Validation
File structures
Design and testing strategy/plan
Development
Testing strategies
normal
abnormal
extreme
live
User Documentation
how to load/install/run the software
how to save files
how to do a seach
how to sort data
how to do print outs
Technical documentation
program listing/coding
programming language used
program flowcharts
system flowcharts
compare the final solution with the original task
identify any limitations of the system
identify any necessary improvements that need to be made
a need to train staff on the new system
transfer paper files or electronic files to the new system
scan in the documents
key in the data
download files to new database
changeover to the new system
direct changeover
parallel running
pilot implementation/running
phased implementation