The Decision Reversal Cost Calculator

 Build an interactive tool that helps teams evaluate how difficult, expensive, or disruptive it would be to reverse a major decision after implementation.

Allow users to describe a proposed decision, expected benefits, dependencies, implementation stages, contractual commitments, migration costs, and potential exit options.

Generate:

  • A decision dependency graph.

  • A reversibility assessment with explicit scoring criteria.

  • A breakdown of sunk costs versus future avoidable costs.

  • A scenario explorer for early, middle, and late reversal.

  • A detector for decisions that create irreversible downstream commitments.

  • A list of checkpoints that could preserve future options.

  • A comparison of phased rollout and full commitment strategies.

  • A decision memo documenting assumptions, risks, and exit conditions.

Do not treat sunk costs as recoverable simply because a decision is reversed. Separate known costs from estimates, explain the assumptions behind every scenario, and avoid presenting subjective reversibility scores as objective truth. Include a fictional software platform migration and a business expansion example.

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