Find Drift and Stale Definitions

Scheduled checks that catch the failures where nothing fails.

See the situation

Start with the situation below. Next, we will work through an example together before you try the activity.

Elena · Reporting lead

The case

Two claims that had been wrong for months

An old definition is unverified until checked against current behavior. Age alone does not prove it is wrong.

What was re-read: The specification, against live behavior
Claims found wrong: Two
How long they had been believed: Months
Anything that failed: Nothing
What changed: The implementation. The document did not.

Your task

Classify each finding as supported, unverified, or a demonstrated mismatch. Name the evidence for its next review.

Need a little guidance?

You’re done when: Every flagged definition has a changed dependency or business rule that justifies review.

Age is a weak proxy for drift; changed meaning is the real issue.

Need a reminder? Reopen the worked example

Watch one example first

A vendor choice was economical when reviewed, but its review window expired. That makes the price rationale unverified now—not proof that the vendor is too expensive.

Why this follows from the evidence

Age prompts verification. Compare the documented assumption with current evidence before declaring it wrong or replacing it.

GTM Lab

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Operating Review and Improvement Plan · 0 of 9 sections started

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Case evidence

Two claims that had been wrong for months

What was re-read: The specification, against live behavior
Claims found wrong: Two
How long they had been believed: Months
Anything that failed: Nothing
What changed: The implementation. The document did not.

Two claims had been believed and acted on for months and nothing had failed. Build the checks that would have caught them.

Check the case below to save your activity result and this chapter’s prepared example plan section. You can inspect that template in the saved plan above; no live records are changed.

Review the case

Classify the evidence, not just the age

Read each finding. Decide whether current evidence supports it, contradicts it, or is still missing.

Definitions to evaluate

Drag a card into a bucket, or tap a card and then tap a bucket.

What must the next review record?

Restoring this working packet…

Optional: compare alternative reasoning

The case tool above saves your result and completes this activity. These comparisons are extra practice; they do not change your saved plan.

Work the case · 0 of 3 sections drafted

Catch the quiet failures

Compare these alternatives one section at a time. Check a choice to see its consequence; the draft summary below keeps the proposed changes together.

Step 1 of 3

What makes a staleness threshold actually work?

Setting the threshold correctly for each item.A scheduled sweep that finds everything past its own threshold and produces a list.One organisation-wide freshness standard, applied consistently.

This is a proposed draft until the chapter check runs. Selecting a choice alone does not complete the chapter.

4c · Proposed

Improvement plan draft

Improvement plan draft · current draftCompare the original state with the proposed change. This preview does not change live records.

Improvement plan draft · current draft
Item	Before	Proposed	Why
What makes a staleness threshold actually work?	No saved change in this exercise draft	Not drafted yet	Choose a proposal to see what it would add to the draft.
A definition has not been touched in two years. What is it?	No saved change in this exercise draft	Not drafted yet	Choose a proposal to see what it would add to the draft.
A vendor was chosen on price. What gets recorded?	No saved change in this exercise draft	Not drafted yet	Choose a proposal to see what it would add to the draft.

What makes a staleness threshold actually work?: BeforeNo saved change in this exercise draft; ProposedNot drafted yet; WhyChoose a proposal to see what it would add to the draft.
A definition has not been touched in two years. What is it?: BeforeNo saved change in this exercise draft; ProposedNot drafted yet; WhyChoose a proposal to see what it would add to the draft.
A vendor was chosen on price. What gets recorded?: BeforeNo saved change in this exercise draft; ProposedNot drafted yet; WhyChoose a proposal to see what it would add to the draft.

A choice appears here as a proposal, not as evidence that a live system changed.

Your place saves as you go.

Chapter 5 of 90 complete