SW Project lifecycle models: Evolutionary / Incremental
Specify
Design
Implement
Test
Release
Specify
Design
Implement
Test
Release
Specify
Design
Implement
Test
Release
Specify
Design
Implement
Test
Release
Release 1
Release 2
Release 3
Release 4
Whole system
Time
Earlier implementation is not changed between releases.
For example:
- cellular phone network
- product versions and updates
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