crusspic-stmpl-heuristic

Overview

CRUSSPIC STMPL is James Bach's quality-criteria mnemonic. The thirteen criteria are enumerated under "Quality Criteria Categories" in Bach's Heuristic Test Strategy Model (HTSM v6.3, 2024-11-05), which defines a quality criterion as "some requirement that defines what the product should be" (HTSM). The HTSM prints the criteria as named categories; the CRUSSPIC STMPL letters are the memory aid taught over them, not an acronym the HTSM itself spells out.

It overlaps with ISO/IEC 25010:2023 (the formal software- quality model) but offers a more practitioner-friendly mnemonic form that fits in an exploratory tester's working memory.