Build vs. Buy vs. Partner is the choice of how an organization will deliver a solution: developing it organically, acquiring it, or partnering for it. These choices are a core part of a strategy's implementation approach and carry very different cost, speed, and risk profiles.
Build, buy, or partner decisions are the implementation approach choices for how to develop and deliver your solution to the market. In the BRI Strategy Framework they live inside the Implementation Approach dimension, where each solution element's delivery method is chosen and its execution risk assessed against that element's impact on the solution's performance. For the complete framework, see the Strategy Framework page at /supporting/strategy-framework. Related Terminology Index entries: Implementation Approach; Strategy Diamond; Whole Product; Value Network.