Q007 — ACH Matrix¶


Research	R0021 — Prompt engineering definitions
Run	2026-03-25
Query	Q007

Matrix¶

	H1: Substantial with frameworks	H2: Minimal/theoretical	H3: Active but challenges
SRC01-E01: DARPA XAI 4-year, 12,700 participants	++	--	+
SRC02-E01: EU AI Act/GDPR explainability mandates	++	--	+
SRC03-E01: 2,425 XAI papers; post-hoc methods approximate	+	--	++

Legend: ++ Strongly supports · + Supports · -- Strongly contradicts · - Contradicts · N/A Not applicable

Evidence ID	Why Diagnostic
SRC03-E01	The volume of research (2,425 articles) combined with the acknowledgment that methods are approximate discriminates between H1 (fully mature) and H3 (active but challenging).

Hypothesis supported: H3 — Research is active and growing but practical challenges remain.

Hypotheses eliminated: H2 — Thousands of papers, major government programs, and legislated requirements eliminate the "minimal" hypothesis.

Hypotheses inconclusive: H1 — Partially supported; frameworks exist but deployment challenges persist.