Original practitioner framework
Assurance Unit Method
Define the smallest meaningful unit of intended use, failure, control, and evidence before selecting a test.
Open frameworkCSA method library
CSA Frameworks
Practical models for selecting, combining, explaining, and maintaining assurance evidence.
Original practitioner framework
Evidence Leverage Ladder
Evaluate supplier evidence by relevance, credibility, coverage, and the customer-specific gap that remains.
Open frameworkOriginal practitioner framework
CSA Test Selection Compass
Choose scripted, exploratory, automated, or observational evidence from risk, determinism, novelty, and detectability.
Open frameworkOriginal practitioner framework
SaaS Release Impact Model
Triage continuous SaaS change through exposure, criticality, detectability, and novelty.
Open frameworkOriginal practitioner framework
AI Control Envelope
Define the conditions within which an AI-enabled use remains acceptable and detectable.
Open frameworkOriginal practitioner framework
Inspection Narrative Map
Connect intended use, failure, control, evidence, decision, and monitoring into a concise assurance argument.
Open frameworkOriginal practitioner framework
Living Assurance Case
Maintain a versioned claim–argument–evidence structure as systems, suppliers, and risks change.
Open framework