Assurance Unit Method
Define the smallest meaningful unit of intended use, failure, control, and evidence before selecting a test.
Methods you can use
Practical Tools
Small, transparent aids that structure professional judgment without pretending to automate accountability.
Interactive planning aid
CSA Test Selection Compass
Explore how determinism, novelty, and detectability affect the primary test method.
Deterministic prototype · AI-assistance roadmap
CSVDoc Reviewer
Run inspectable document checks, trace candidate findings to source context, and preserve human dispositions. The product brief also defines the control boundary for future AI-assisted review.
Review the controls before launchSanitized draft→Traceable candidate finding→Human disposition
Printable working aids
Framework worksheets
Open printable worksheet →
Evidence Leverage Ladder
Evaluate supplier evidence by relevance, credibility, coverage, and the customer-specific gap that remains.
CSA Test Selection Compass
Choose scripted, exploratory, automated, or observational evidence from risk, determinism, novelty, and detectability.
SaaS Release Impact Model
Triage continuous SaaS change through exposure, criticality, detectability, and novelty.
AI Control Envelope
Define the conditions within which an AI-enabled use remains acceptable and detectable.
Inspection Narrative Map
Connect intended use, failure, control, evidence, decision, and monitoring into a concise assurance argument.
Living Assurance Case
Maintain a versioned claim–argument–evidence structure as systems, suppliers, and risks change.
AI-assisted Validation-document Review Methodology
Use AI to prioritize and structure review while preserving accountable human decisions and source traceability.