<p>It takes the export through four steps, and each one leaves proof behind.</p> <ul><li><strong>Publish.</strong> Your model goes up from Revit as a versioned snapshot with its own files, author and milestone.</li><li><strong>Compare.</strong> Any two revisions diff element by element, so the change is visible.</li><li><strong>Pin.</strong> The issue attaches to the element and carries the sheet and revision it came from.</li><li><strong>Close with proof.</strong> A screenshot, a tagged user and the linked model commit that fixed it.</li></ul> <p>The resolution is defensible because every step ties back to an element in the model. When a GC or trade asks, you show the record.</p> <p>The saving is on site. A clash caught in the model costs about $50, against $5,000 to $50,000 in the field.</p>