What does it mean that trigger conditions for schema review?

Define specific signals that should prompt you to re-evaluate a schema.

Example: A product manager ran every sprint planning through the same prioritization framework for eighteen months. Customer churn doubled in Q3. She didn't review the framework — not because she was lazy, but because nothing in her system flagged the churn spike as a trigger to question prioritization. The schema wasn't wrong when she adopted it. The market shifted, and she had no tripwire to catch it.

Try this: Pick your most consequential active schema — a decision framework, a hiring rubric, a mental model you use weekly. Write down three specific, observable conditions that should trigger you to review it. For each trigger, define the threshold (how much deviation), the evidence source (where you'd see it), and the response (what review action you'd take). Put these triggers where you'll actually encounter them — a recurring calendar check, a dashboard alert, a note pinned to the schema itself.