The correct answer is Define, because process mapping begins early when the team is establishing a shared understanding of the work, scope, stakeholders, and major process boundaries. In DSIADV or related DFSS models, the Define phase sets the foundation for the project by clarifying the customer, the business need, the high-level process, and the current or intended workflow context. Starting a process map at this point helps the Black Belt and team identify major steps, interfaces, inputs, outputs, and customers before moving into deeper measurement and analysis. The map may begin at a high level in Define and become more detailed later as the team learns more. Waiting until Measure or Analyze would delay understanding of the process structure that is needed to guide data collection and requirement analysis. In DFSS work, early mapping is especially helpful for clarifying design scope and understanding how the future process or service will need to function. Therefore, the correct answer is A, Define, because that is where the Black Belt typically starts developing the process map.

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