Describe the behavior in the driver’s language: first appearance, frequency, conditions, recent changes, and impact.
Output / a shared symptom statementMethod / four checkpoints
A straight line through a noisy problem.
The fictional process keeps the driver’s observation, the technician’s evidence, and the decision itself in one readable chain.
The operating loop
Four checkpoints. No black box.
Expand each stage for the intended questions and output.
Use context and initial evidence to prioritize checks that can meaningfully confirm or reject a hypothesis.
Output / an evidence-led test pathSeparate knowns, likely causes, uncertainty, dependencies, and choices before a fictional authorization point.
Output / a legible decision recordReturn to the original condition, document what changed, and identify any monitoring or follow-up.
Output / a useful handoff
Decision discipline
Pause before parts.
A clear checkpoint between diagnosis and action can protect trust. The concept language makes assumptions visible and gives the driver an understandable reason for the proposed next move.
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