STR.12:11 - SoTA-Echoing
How can a signal support timely adaptation without deciding the response by itself? Adapt the distinction between switch points and observable triggers in Lynch and colleagues’ 2025 RAD analysis. Its ecological adaptation cases inform sections 4.2–4.4’s separation of observed indication, changed judgement and feasible response. They do not establish corporate trigger values. A periodic review remains the serious simpler alternative where the decision window and exposure permit it; an existing authorized control rule remains preferable for its direct operating question.
What should change after observation? Adopt PSD.14’s qualified, scoped decision-support return rather than reopening the whole strategy after every source change. Sections 4.1, 4.3 and 4.5 preserve actual dependence and separate recommendation, later choice and performance. Section 5.2 distinguishes a new observation from a changed selection basis while allowing the problem account and filter to be revised. Revisit the arrangement when its signals, access, interpretation delay or response authority no longer support the receiving decision.
How can a growth report distinguish volume from behaviour? Adapt Ries’s The Lean Startup (2011, chapter 7) by constructing comparable entry groups and reporting their counts as well as proportions in sections 4.3 and 5.4. A gross total alone is a weaker answer to a conversion question, although it may answer a capacity or payment question. The source’s historical cohort examples do not remove time or selection confounding. Microsoft’s 2020 sample-ratio-mismatch account supplies a concrete warning: filtering and missing units can reverse an experiment’s apparent result. Retain its data-quality question, not a universal platform threshold or reporting workflow. Reopen interpretation when the counted unit, group membership, follow-up coverage or collection process changes.