EM-RTL-05 · Subject model · W-IND

Return, exchange and refund

A customer's request to return goods, its authorization, receipt and inspection, the grading of condition, the disposition of the goods and the refund or exchange given. The original sale and the payment are referenced, not changed.

Partially published; research continues

Claude: initial-industry-contour-and-card-supplement; Grok: not-started.

Published results

The independent second-provider study, fixtures and the full research protocol remain open. Runtime promotion is governed by the package allocation holds.

Subject boundary and candidate types

Deep research questions

Verifiable invariants

End-to-end acceptance scenario

For a synthetic online order of three items, authorize a return of two, receive one damaged and one resellable, refund one and exchange the other, and show the stock and payment records.

Negative case

A refund is issued as soon as the courier label is created, and the goods never arrive.

Approaches to compare

Candidates in the live catalogue

Result requirements

Every card is executed together with the full research contract: definitions, fields and cardinalities, lifecycle, sources, data mastership, rights, the five object facets, at least eight invariants, positive and negative examples, dependencies, migration and applicability limits.

Machine-readable assignment JSON