Concept
About findings and sign-offs
What a finding is, what a sign-off binds, what withdraws one, and why numbers and records are never lost.
In short: a finding is a draft until a named engineer signs it off, and a sign-off applies to one exact version of it. Change what the finding says and the sign-off is withdrawn; nothing — not even Undo — can give it back silently.
A finding
Section titled “A finding”A finding is a record tied to a place on the structure: a point observation, a saved measurement, or an AI proposal. Each has:
- A number — OBS-001, OBS-002 and so on — issued once and never reused. A deleted finding keeps its number, and a restored one comes back with it.
- A saved view, which Fly to returns to and from which its PDF page is rendered.
- A review state: draft, signed off, signed off and independently reviewed, or dismissed.
Drafts and sign-offs
Section titled “Drafts and sign-offs”Every new finding starts as a draft — those recorded by people as well as those proposed by the AI. A draft is in the project’s records and visible to everyone, but it is not in any report.
A sign-off records that a named engineer accepted the finding, with its severity. AerTwin takes the name from the engineer’s sign-in and the time from its own clock, so neither can be typed in or backdated. Only signed-off findings are printed in PDF reports and exported to CSV.
An optional second review, by an Admin who is not the first engineer, adds a second stamp: ✓✓ on the card.
A sign-off binds a version
Section titled “A sign-off binds a version”Every change to what a finding asserts creates a new version, and a sign-off applies to the version it was given to. So these changes withdraw a sign-off:
- Title, Engineering assessment, Severity, Category, Dam component / location, Recommended action or Target date;
- the outline (Apply, Restore, Measure as) or the saved view (Update Fly-to view).
These do not, because they do not change the engineering judgement:
- Status and Tags;
- filing the finding in a group, or taking it out of one.
A finding whose sign-off was withdrawn shows draft again until someone signs it off again. Undo restores content, never a signature: undoing an edit brings back the old wording, but the finding stays a draft.
Nothing is lost
Section titled “Nothing is lost”- Deleting keeps the record. A deleted finding leaves the list, the model and the reports, but the record is kept and can be restored with its number.
- Moved points are remembered. A saved outline keeps its last 5 previous positions, each with what it measured, so a change can be put back with Restore.
- Reports say what they leave out. The first page of a PDF report counts the AI proposals that were dismissed and those not yet reviewed, so that a reader can tell a finished inspection from an unfinished one.