What Is the Purpose of Brainstorming During the Development of an Action Plan?

The answer

During the development of an action plan, the purpose of brainstorming is to increase the likelihood that key points will be included, this is the correct choice (option B in the standard question). Brainstorming is a divergent-thinking technique: participants rapidly generate a large volume of ideas before evaluating them. When you cast a wide net early, you are far more likely to capture every important task, obstacle, resource, and stakeholder perspective that the plan needs to address.

An action plan turns a goal into concrete steps, what will be done, by whom, with what resources, and by when. If the team jumps straight to writing steps, it risks missing something critical: a hidden dependency, a needed approval, a group affected by the change. Brainstorming reduces that risk by inviting many contributions up front, so the final plan is more complete and robust.

Why the other options are wrong

Typical distractors frame brainstorming as a way to narrow, limit, or minimize, and that misreads its function:

• "To minimize the number of steps in the plan", wrong. Brainstorming is about expanding the pool of ideas, not shrinking the plan. Trimming and prioritizing happen later, during evaluation, not during the brainstorm itself.
• "To limit participation to managers/experts", wrong. Effective brainstorming widens participation so diverse viewpoints surface. Restricting input defeats the purpose.
• "To assign blame or evaluate/criticize ideas immediately", wrong. A core rule of brainstorming is to defer judgment; criticizing ideas as they appear discourages contribution and cuts off potentially valuable directions.
• "To finalize the budget" or similar convergent tasks, wrong. Those are downstream steps that follow idea generation.

The unifying error in all distractors is treating brainstorming as a convergent (narrowing) activity. It is fundamentally divergent (broadening).

The bigger picture

Brainstorming is one early stage in a larger action-planning cycle: generate ideas (brainstorm) -> organize and evaluate them -> select and sequence the steps -> assign owners, resources, and deadlines -> execute and review. Its distinct value lies in quantity and openness: research on group ideation shows that separating idea generation from idea evaluation produces more, and often better, options because people are not self-censoring.

Good practice includes encouraging wild ideas, building on others' contributions, welcoming everyone's input, and recording every idea for later review. Only after the brainstorm does the group converge, grouping related ideas, filtering for feasibility, and prioritizing what makes it into the final plan. So while later stages do narrow the list, the brainstorming stage exists to make sure nothing important was left out in the first place. That is precisely why its purpose is to increase the likelihood that key points are included.