1.The waterfall model.
Plan-driven model. Separate and distinct phases of specification and development.
2.Incremental development.
Specification, development and validation are interleaved. May be plan-driven or agile.
3.Reuse-oriented software engineering.
The system is assembled from existing components. May be plan-driven or agile.
jim items answered the question on March 13, 2019 at 13:06
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