Case · Invoice review behavior experiment
Same queue. Different system posture.
Change the invoice condition
INV-20431Northwind Supplies€ 1,240.00MatchedINV-20422Contoso Logistics€ 18,900.00Needs reviewINV-20418Fabrikam Ltd€ 4,312.50Blocked
Observed condition
The supplier, legal entity, purchase order, totals, and receipt agree. The user is allowed to review this entity.
Prepared for review
Prepare the coding as a draft, link every value to its source, and leave approval and posting to the authorized reviewer.
Evidence
- Supplier
- Completed
- Northwind Supplies
- PO match
- Completed
- 3 of 3 lines
- Bank account
- Completed
- Unchanged since last invoice
Fig. · bank detail change
INV-20418
- Supplier
- PO match
- Amount
- Bank account
- Due
Changed since last invoice
Plausibility is not provenance. Confidence is not authorization.
Revised design · The behavior spec separates five decisions
Exact rules
Totals, currency, duplicate detection, legal-entity permission, and workflow state stay deterministic and independently testable.
Interpretation
Coding and likely policy exceptions remain proposals tied to source evidence.
Authorization
The system may prepare a review. It may not approve, post, schedule payment, or alter supplier details.
Visibility
Facts, inferences, rule matches, missing evidence, and policy conflicts have distinct labels.
Recovery
Preserve the original, allow field-level correction, and distinguish cancellation from compensation after an external action.
The Product Architect · Case
INV-20418 · illustrative