Varion Evidence
Every report line, traced to its source.
An interactive demonstration for construction weekly reports.
- Status
- Interactive demonstration on synthetic data
Check a report the way a reviewer would.
Each line cites a source. Open it, check it, mark it reviewed.
Try Varion Evidence
Meridian Works · 31 Aug – 06 Sep 2026 · revision 07Meridian Works · 31 Aug – 06 Sep 2026 · revision 08
Review queueReady for reviewDraftSynthetic data
Step 1 of 3
Check the calculation
This line is a calculation from row 18 of the progress register: 36 of 48 pile caps is 75%. Evidence asks the reviewer to check it against the source.
Tick the box under Reviewer decision.
Step 1 of 3
Approve the line
With the calculation checked, Approve claim records Sofia's review of revision 1 and confirms the calculation in one step.
Press Approve claim.
Step 1 of 3
Now the calculation line
Completed work is reviewed. Progress against baseline still needs its calculation checked and the line approved.
Pick Progress against baseline.
Step 1 of 3
Approval needs a reviewer
Nur Aina is the document controller. Evidence offers Approve claim only to a reviewer.
Switch to Sofia Lim, the reviewer.
Step 2 of 3
Approval needs a reviewer
Nur Aina is the document controller. Evidence offers Approve claim only to a reviewer.
Switch to Sofia Lim, the reviewer.
Step 2 of 3
Line reviewed
Revision 1 is reviewed by Sofia Lim, and its calculation is confirmed. Both are conditions for release.
Pick Completed work.
Step 2 of 3
A source in Bahasa Malaysia
This line cites page 4 of the weekly site diary. Compare the Malay excerpt and its English explanation with the statement before approving.
Press Approve claim.
Step 3 of 3
What if a source is withdrawn?
Records change after review. In Evidence a document controller, not a reviewer, decides which records may support a report.
Switch to Nur Aina, the document controller.
Step 3 of 3
Withdraw the site diary
Nur Aina sets the diary's authority to Withdrawn. Before she saves, Evidence shows which reviews the change will undo.
Press Save authority change.
Step 3 of 3
You are Nur Aina, the document controller
She decides which records may support a report, such as the site diary behind Completed work.
Pick Completed work.
Step 3 of 3
The review was undone
Evidence cleared the review of the line that cited the diary, and the report moved to revision 08, back in Draft, so it must be submitted again.
Open Release preflight.
Step 3 of 3
The report changed
Withdrawing the diary moved the report to revision 08, back in Draft. Release preflight shows what release now waits for.
Open Release preflight.
Explore
This line cannot be approved
Its source, RFI-017, is unverified, and the statement conflicts with it: the consultant's response is still pending. Evidence blocks approval until both are resolved.
Pick another line to carry on.
Explore
A forecast line
This line forecasts a delivery from the procurement schedule, revision B. A reviewer approves a forecast like any other line.
Press Approve claim, or pick another line.
Explore
A forecast line
This line forecasts a delivery from the procurement schedule, revision B. A reviewer approves a forecast like any other line.
Pick another line to carry on.
Explore
Forecast reviewed
Revision 1 of this line is reviewed by Sofia Lim. Release needs every line reviewed, not only the ones in the steps.
Pick another line to carry on.
Explore
Release preflight
Every gate must pass on the exact revision being released. The RFI-017 line fails three of them, so this report cannot be released yet.
Go back to Review queue to carry on.
Done
What release waits for
The withdrawn diary fails its evidence gate, its line is no longer reviewed, and revision 08 is in Draft. Release waits until every gate passes.
That is the whole demo. Explore, or start again.
Start again0 of 4 claims reviewed1 of 4 claims reviewed2 of 4 claims reviewed3 of 4 claims reviewed
VE-CIV-001Rev CCSV
Structural progress register
Row 18 · columns B–E
Exact source excerpt English
Zone B | Pile caps completed: 36 | Approved scope: 48 | Unit: each
Deterministic calculationConfirmed
36 ÷ 48 × 100 = 75%
Completed / approved scope · pile caps. The denominator must be the approved scope, not a working figure.
Reviewer decision
Approval interactions are available to the reviewer role. Switch the demo role to reviewer to inspect them.
I checked the inputs, units and calculation against the source.
Approve claimEvidence states
- Evidence available1 approved source covers the reporting period.
- Calculation unconfirmedThe reviewer must confirm inputs, units and the rule before approving.
- Calculation confirmedA reviewer checked inputs, units and the rule against the source.
- Needs reviewRevision 1 has no independent review yet.
- ReviewedRevision 1 was reviewed by Sofia Lim.
VE-CIV-002Rev CPDF
Laporan tapak mingguan
Page 4 · Section 2.1
Exact source excerpt Malay
Kerja pemasangan tetulang bagi zon B telah disiapkan pada 3 September 2026. Pemeriksaan direkodkan dalam daftar tapak.English explanation
Reinforcement installation for Zone B was completed on 3 September 2026. An inspection was recorded in the site register.
Reviewer decision
Approval interactions are available to the reviewer role. Switch the demo role to reviewer to inspect them.
Approval is disabled while evidence states block this claim.
Approve claimAuthority state
Set Laporan tapak mingguan, revision C, from Approved to Withdrawn.
Saving invalidates 1 review across 1 claim.
Evidence states
- Source withdrawnLaporan tapak mingguan was withdrawn. It cannot support a released claim.
- Evidence available1 approved source covers the reporting period.
- Needs reviewRevision 1 has no independent review yet.
- ReviewedRevision 1 was reviewed by Sofia Lim.
VE-CIV-003Rev BPDF
Procurement delivery schedule
Page 2 · Delivery milestones
Exact source excerpt English
Cable tray delivery: 11 September 2026. Supplier confirmation remains pending.
Reviewer decision
Approval interactions are available to the reviewer role. Switch the demo role to reviewer to inspect them.
Evidence states
- Evidence available1 approved source covers the reporting period.
- Needs reviewRevision 1 has no independent review yet.
- ReviewedRevision 1 was reviewed by Sofia Lim.
VE-CIV-004Rev APDF
RFI-017 · Drawing clarification
Page 1 · Proposed clarification
Exact source excerpt English
Revised opening dimensions are proposed. Consultant response is pending.
Reviewer decision
Approval interactions are available to the reviewer role. Switch the demo role to reviewer to inspect them.
Approval is disabled while evidence states block this claim.
Approve claimEvidence states
- Conflicting recordsStatement conflicts with the source: consultant response is pending.
- Source unverifiedRFI-017 · Drawing clarification has no confirmed approval. A controller must set its authority.
- Needs reviewRevision 1 has no independent review yet.
Release preflight
Every gate must pass on the exact revision you are releasing. The release is transactional: it either records the whole snapshot or nothing.
Authorisation
- A project existsMeridian WorksPassedFailed
- Released by an authorised reviewerSofia Lim holds the reviewer role.Your current role is controller. Only a reviewer can release.PassedFailed
- Reviewer is not the authorAuthor and releasing reviewer are different people.PassedFailed
Report
- The report has claims4 claims in revision 7.4 claims in revision 8.PassedFailed
- Current revision submitted for reviewStatus: Ready for review.Status is Draft. The author must submit revision 8.PassedFailed
Claims
- Progress against baseline: eligible evidenceSources are approved, current and extracted.PassedFailed
- Progress against baseline: current revision reviewedRevision 1 reviewed.Revision 1 needs an independent review.PassedFailed
- Progress against baseline: calculation confirmedInputs, units and rule confirmed by the reviewer.A reviewer must confirm the calculation against its source.PassedFailed
- Completed work: eligible evidenceSources are approved, current and extracted.Laporan tapak mingguan: withdrawnPassedFailed
- Completed work: current revision reviewedRevision 1 reviewed.Revision 1 needs an independent review.PassedFailed
- Procurement and delivery: eligible evidenceSources are approved, current and extracted.PassedFailed
- Procurement and delivery: current revision reviewedRevision 1 reviewed.Revision 1 needs an independent review.PassedFailed
- RFIs and changes: eligible evidenceStatement conflicts with the source: consultant response is pending.PassedFailed
- RFIs and changes: RFI-017 · Drawing clarification: unverifiedRFI-017 · Drawing clarification: unverifiedPassedFailed
- RFIs and changes: current revision reviewedRevision 1 needs an independent review.PassedFailed
How to use this demo
- Tick the calculation box and approve Progress against baseline.Done
- Approve Completed work against the Malay site diary.Done
- Switch to Nur Aina, withdraw the diary, then open Release preflight.Done
Also try Procurement and delivery, a forecast, and RFIs and changes, the line that cannot be approved.
Start againInteractive demo on synthetic data. Nothing you click leaves this page.
What it shows.
Statement to source
Each report statement links to the record it relies on.
Revision aware
Each link names the revision of the source it was checked against.
Reviewer decision
Who accepted the statement, and when.
Re-review on change
A superseded or withdrawn source marks every statement that used it.
Where it stands.
Varion Evidence uses synthetic data. Demo changes live in memory and reset on reload. It has no backend and does not process files.
See it on a synthetic report.
A 30-minute walkthrough, then a conversation about your workflow.
Request an Evidence walkthroughYou will hear back from Hirthic.