<p>Because the design keeps moving after the export is cut. Someone updates the model, and the file you hold is already one revision behind. Then you spend hours working out which version is current. That is the 11 hours a week many coordinators lose.</p> <p>BidLight keeps the exports tied to the model. You publish from Revit, and every publish is a versioned snapshot with its own files, author and milestone. Any two revisions compare element by element, so you can see what moved between the one you hold and the latest.</p> <p>The routine:</p> <ul><li>Publish when the model changes.</li><li>Compare the new revision with the one you are working from.</li><li>Read the changes by category and pin issues to the affected elements.</li><li>Let the 6am digest tell each owner what moved.</li></ul> <p>No chasing PDFs, and no argument over which file is current. The record shows it.</p>