<p>It shows you the change the day it is published, so a problem shows up in the model instead of three weeks later in the field.</p> <p>BidLight runs inside Revit. Every publish is a versioned snapshot, and you compare any two revisions element by element, grouped by structural, MEP, envelope and interior.</p> <p>Here is how to catch costly changes early:</p> <ul><li>Publish from the model after every major design change.</li><li>Compare the new revision against your last approved one.</li><li>Pin an issue to each element that moved in a way that matters.</li><li>Assign owners. They see their items in the 6am digest.</li><li>Notify the GC or trade before it becomes a field problem.</li></ul> <p>A clash caught in the model costs about $50. The same clash found in the field costs $5,000 to $50,000. The record keeps pace with the design, so you stay ahead of the field.</p>