Evidence Chain
A traceable link between a compliance claim in a tender response and the source document that proves it. Evidence chains include the specific document, page, section, and confidence score for each claim.
An evidence chain is the audit trail that connects a compliance claim in a tender submission to its supporting documentation. When a supplier claims "this device meets IEC 60601-1 safety requirements," the evidence chain specifies exactly where that proof comes from.
Components of an evidence chain
- Source document: The specific datasheet, test report, certificate, or regulatory filing
- Location: The exact page number and section within the document
- Claim mapping: How the source text satisfies the tender requirement
- Confidence score: A 0-100% rating of how strongly the evidence supports the claim
Why evidence chains matter
Procurement authorities increasingly verify compliance claims during tender evaluation. A submission with traceable evidence chains scores higher than one with generic assertions. Evidence chains also protect suppliers during post-award audits — every claim can be verified independently.