Concept and mechanism
Choose models that clarify the question at hand. A state model helps distinguish received, validated, rejected, and settled. A data relationship helps represent several holders per account and several accounts per customer. A decision table makes condition combinations explicit. If a fictional policy requires dual approval for a large amount OR a new beneficiary, one true condition is enough; do not implement AND by habit. Models should share meaning. Two teams using complete for sent and accepted may create incompatible criteria even when each document appears individually clear.
Guided application
Verification addresses specification quality; validation assesses whether what was specified contributes to the need. A rule can be perfectly written and still fail to solve the problem. For performance requirements, define the operation, load, percentile, and measurement conditions. Fast is insufficient. For a cut-off, clarify time zone, receipt instant, and boundary inclusion rather than assuming a 16:00 test covers 17:00. Temporary conversion needs may be transition requirements. A prototype using simulated data may teach navigation lessons but does not demonstrate real integration or scale. Use each piece of evidence within the scope actually observed.
Finishing in two seconds while waiting for confirmation that may take ten requires clarifying which completion is promised.
Common pitfalls
Individual clarity without overall consistency; prototype as production; one normal case as boundary coverage.
Related topics: Compare design options and value · Measure outcomes and interpret evidence
Model behavior and confirm that criteria serve the need.
Reference: CBAP Competencies and Proficiency Levels · CBAP six-knowledge-area blueprint, May 2026 handbook