Key Points
The construction sequence and integration approach affect the order in which classes are designed, coded, and tested.
A well-thought-out integration order reduces testing effort and eases debugging.
Incremental integration comes in several varieties, and, unless the project is trivial, any one of them is better than phased integration.
The best integration approach for any specific project is usually a combination of top-down, bottom-up, risk-oriented, and other integration approaches. Tshaped integration and vertical-slice integration are two approaches that often work well.
Daily builds can reduce integration problems, improve developer morale, and provide useful project management information.
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