Cost application supporting evidence Demonstration evidence
All values illustrative.
Commercial assurance platform
Commercial decisions that survive the challenge.
Westheath Commercial Intelligence turns contracts, applications and evidence into a governed record — so that every finding has a traceable basis and a named author.
- Built for
- Major construction and infrastructure programmes
- Domain
- Post-award cost and commercial assurance
- Evidence
- Content-addressed, append-only
- Authority
- Every finding authored by a named person
The problem
Cost is certified faster than it can be justified.
On a major programme, thousands of commercial decisions are made under time pressure, across spreadsheets and email, by people who will have moved on before anyone asks why.
Was this cost properly due under this contract?
The question at the heart of post-award commercial assurance.
See how Westheath Commercial Intelligence (WCI) applies this evidence chain in governed cost verification.
Position
This is not contract review.
Contract-review platforms read the contract before the work. Westheath Commercial Intelligence examines the payment after it. Both are useful. They are not the same discipline.
| Dimension | Contract review platforms | Westheath Commercial Intelligence |
|---|---|---|
| Object | The contract, before and during the work | The payment, after it |
| Question answered | What risk does this clause carry? | Was this cost properly due under this contract? |
| Output | A risk report and a notice calendar | A governed, append-only evidence record supporting a professional opinion |
| Where AI sits | It forms and expresses the assessment | It assists retrieval and drafting. It cannot assert what evidence means |
| Who buys it | Commercial managers and quantity surveyors | The assurance function, client-side |
| Time horizon | Minutes. A risk report before the next meeting | Years. Defensible when the record is reopened |
These are adjacent disciplines, not competing products. A programme may reasonably need both.
The platform
Five governed capabilities. One chain of evidence.
Not five products. One platform, in which each capability is built to hand a governed artefact to the next and a named person authorises every step that matters.
Blueprint
Contract DNA
Builds a certified, content-addressed model of the executed contract — its options, amendments and the clauses that actually apply. Every later conclusion refers back to it.
TRACE™
Assurance execution
Executes governed tests against evidence, assembles the chain behind each observation, and presents a draft finding to the person who will author it.
Resolve
Findings to closure
Carries a certified finding through action, response, verification and close-out, keeping the evidential thread intact from first observation to final agreement.
Insights
Portfolio learning
Designed to read across completed engagements and show where the same issue keeps recurring. Read-only by design: it would observe the record and never change it.
Command
Governance control
Designed as the governance control plane, holding the gates, the authority roster and the enforcement rules for every other capability.
The software
The platform, as it stands today.
Contract DNA
The executed contract, modelled once.
The contract is modelled, not assumed.
Assurance execution
Tests, evidence and the finding, on one surface.
The workspace holds the governed test library, the evidence and the draft finding on one surface, with the governance context beside it.
Rules execute deterministically, retrieval and drafting are assisted, and the finding is authored by the person whose name goes on it.
The TRACE assurance workspace — governed test library, evidence sources side by side, draft finding editor and Human Gate panel.
Closure
A finding is not closed because someone said so.
Resolve carries each certified finding through to agreement: the action raised, the response received, the evidence submitted, the verification performed, the closure authorised.
The thread from the original observation to the final position stays intact, which is what makes the position defensible once the people have changed.
How it is governed
The machine evidences. The person decides.
Every design decision in the platform follows from one rule: automation may prepare a conclusion, but it may never reach one.
01
Evidence before AI
Every conclusion traces to a source artefact. No statement is generated without the evidence that supports it.
02
Rules before AI
Governed, deterministic rules are the execution engine. Language models assist retrieval, classification and drafting.
03
Judgement stays human
The platform may extract, classify, compare, cross-reference and draft. It may not approve a finding, close a finding or issue a report.
04
One source of truth
Evidence exists once. Every output is generated from it, so no two documents can quietly disagree.
The record
What you are left with.
Not a report that summarises the work. The work itself, in a form that can be reopened.
Every artefact is content-addressed and sealed.
Confidence is a recorded state, not an opinion.
Illustration of a human gate-review decision point in TRACE. Non-interactive.
Human Gate — certification
Certification decision
Demonstration finding
Nothing is certified without a named authority.
Who it is for
Built for the people who sign.
Commercial assurance is a discipline of evidence, independence and accountable judgement. The platform is built around the person who has to stand behind the answer.
See how it applies- Those who sign
- A defensible basis for what has been certified
- Those who do the work
- Less manual working-paper effort, no loss of control
- Those who set the standard
- Consistency and governance across every supplier
- Those on the other side of it
- Predictable assurance and fewer disputes
Every decision, defensible.
Bring us one assurance review you have already completed.
The most useful first conversation is about work you have already done, not work the platform might do.