Signal-Response Distance: A diagnostic construct for AI-era organisational responsiveness.

Most strategic architecture practice operates at the level of artefacts — capability maps, value streams, roadmaps. The artefacts can be accurate without the transformation being possible, because the binding constraint on strategic response lives below the artefact layer, in the typed delays of the organisation's response capability.

Signal-Response Distance (SRD) is a diagnostic construct for measuring those delays. It decomposes the response into six capability stocks — Sensing, Acquisition, Assimilation, Seizing, Reconfiguring, Reflexive — and measures the delay each stock contributes to the total response.

The construct classifies each measured signal by response distance and complexity into one of four quadrants, each with a distinct intervention prescription. The methodology includes a strengthened anti-confirmation gate, including post-engagement consequentiality follow-up at six and twelve months, designed to surface diagnostic claims that don't survive contact with operational reality.

v0.3 reflects review-driven refinement against eleven major findings from two independent peer reviews.

Each version is dated. Each version names what changed.

1. v0.3 Current · May 2026

   Review-driven reformulation absorbing 1 critical, 11 major, and 18 minor findings from two independent peer reviews. Strengthened anti-confirmation gate with Output 3b consequentiality follow-up. Quadrant renaming: Augmented Frontier, Instrumentation Gap, Slow-Complex Zone.

2. v0.2 Superseded · February 2026

   Empirically-driven reformulation absorbing eight findings from the second engagement application. Internal-control natural-experiment method introduced.

3. v0.1.1 Superseded · November 2025

   First engagement-driven amendment. Three load-bearing additions: intra-organisational t₀ class, inter-domain coupling, measurement-completeness precondition.

4. v0.1 Superseded · October 2025

   Initial framework draft.

Two doors.