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Evaluate options



The inverse of brainstorming, Stormdraining aims to reduce a large collection of ideas, activities, or components to a smaller collection of the most valuable or promising ideas.

Session Length: 60+ minutes Group Size: 1-4+ people Prep Time: 40+ minutes


Use Stormdraining:

  • After a brainstorming session or when a team confronts a high level of complexity.
  • When a team has a lot of ideas and no clear sense of direction.
  • When a team’s activities lack prioritization or focus.
  • When a team has conflicting ideas about the project’s priorities.


  • This process can:

    • Bring clarity to the results of a brainstorming session that generated a large collection of ideas.
    • Help teams thoughtfully prioritize their ideas and discard ideas with less value
    • Help teams build the habit of “creation by subtraction” and “remove to improve”
    • Increase the team’s mental agility 
    • Safely explore risky ideas, such as removing ideas and topics from their brainstormed list, and do so with grace and respect


As a group, assemble a large collection of ideas, requirements, design components, process steps, or other design elements. This may be an existing collection or the result of a fresh brainstorming session.

Invite the team to distill the large collection into a smaller, more focused set. Remove items from the collection by using the following Five Rules of Stormdraining:

RULE 1: Everything Is on the Table. No sacred cows, please. Every single item is fair game for going down the drain.
RULE 2: Delete Is the Default. Turn the pencil around and make liberal use of the eraser. Not sure if something should be deleted? Only one way to find out.…
RULE 3: Build on Other People’s Deletions. Your teammate’s suggestion to remove one thing likely points to other parts to remove. The objective is to reduce quantity and hone in on the essentials, so practice “Yes, and…”
RULE 4: Make It Fun. Celebrate and encourage the deletions. Compliment people’s creativity and courage when they propose sending something down the drain.
RULE 5: When You Delete Something, Really Delete It. Don’t set it aside and save it for posterity. Don’t take a photo to preserve the moment. Erase it. Drain it. Make it go away.

Download this tool to print out and start using with your team. Each download includes a tool description and if applicable, a template and example.