The clusters and practices in each cell in Table A-1 are ordered according to their effectiveness with respect to the given business value. Therefore, if you were to address “reduce time to market,” you would consider adopting the Simple Design practice before you considered Functional Tests.
Table A-1. Practices and Clusters That Improve Business Value
Clusters of Agile Practices
Agile Practice Patterns
Reduce time to market
Iteration, Test-Driven Development, Evolutionary Design, Test-Driven Requirements
Iteration, Continuous Integration, Release Often, Iteration Backlog, Done State, Test-First Development, Test-Last Development, Test-Driven Requirements, Simple Design, Refactoring, Customer ...