<p>Every area has one live record, and sign-off is pinned to it. You do not hunt through email or a PDF set to find out who closed what.</p> <p>How it works in BidLight:</p> <ol><li>Publish the model or shop drawing export straight from Revit or Navisworks. Each export is versioned automatically.</li><li>Diff the new version against the last one element by element. You see what changed before you look for approvals.</li><li>Open the issue on the element you are about to sign off. It shows who owns it and where it stands.</li><li>An issue closes only with proof: a screenshot, a tagged user and the model commit that fixed it.</li><li>Check the 6am digest. It tells every owner what they own that day, so nothing gets approved twice or missed.</li></ol> <p>The public record is the point. If someone already signed off on the area, you see it, with the commit behind it, before you touch it. No more rework from duplicate approvals, no more idle crews waiting on a sign-off that already happened. That is where the cost control comes from. A clash caught in the model runs about $50 against $5,000 to $50,000 in the field. One unresolved behind idle field labour burns $15K to $50K a week.</p> <p>If you are chasing scattered updates today, that is the headache this removes.</p>