See how the story changes over 12 months
Five moments that affect the same original decision.
Month 0 · 14 Jan 2026 (fictional)
Initial decision signed
What materially changed
Accountable buyer signs the selection of Aster Metrics (fictional). Evidence version locked.
Why it matters
Every later change is measured against this immutable baseline.
| Original (v1) | Updated (SAMPLE) |
|---|---|
| No prior decision | Decision NB-OCC-001 v1 recorded |
- Confidence
- Moderate
- Limitation
- Interoperability claims are vendor-stated, not tested.
- Owner
- Elena Marsh (fictional), Head of Workplace Strategy, accountable buyer
- Action required
- None. Expectations and unknowns recorded.
Decision Ledger result: v1 signed and locked with source snapshot SS-001.
What retained context changes at renewal
The contrast above in detail: what the ledger keeps, so renewal starts from evidence rather than reconstruction.
Without retained context
- Original evidence not reliably known; vendor documents may have changed
- Owners of each concern reconstructed from email and memory
- Connector deprecation discovered at renewal, if at all
- No link between expected and observed outcomes
- Additional reconstruction needed before renewal can be reviewed
With PROVE TDI (illustrated)
- Source snapshot SS-001 retained with the signed v1 decision
- Named owners for procurement, security and KPIs
- Evidence deltas recorded as contradictions, not overwrites
- KPI traceability from expectation to observation to human review
- Renewal framed as a versioned follow-up with open gates visible
Qualitative illustration only. No time or cost savings are claimed.
Why an ongoing relationship matters
Ongoing intelligence, outcome verification by accountable people and decision retention. Commercially independent: vendors cannot pay for ranking, evidence weight, leads, shortlist inclusion or access to buyers.
Intelligently maintained context
Decision Ledger records, source snapshots and evidence provenance.
Periodic outcome re-evaluation
Decision-bound outcome expectations, observations and human approval.
Governed change review
Reviewing vendor and evidence changes against the signed version.
Preparedness for renewal
Automated detection and alerting of changes ahead of renewal.
Your first decision is only the starting point
This is why decision intelligence remains valuable after procurement: retained evidence, governed change review and accountable outcome measurement.
