<p>BidLight speeds it up because the record rides on the same model: you change the spec, publish again, and the changed elements show up in the comparison in minutes instead of several people reconciling it by hand for days.</p> <p>Here is what the workflow looks like:</p> <ul><li>Change the spec in the model.</li><li>Publish from Revit, or from the federated Navisworks model. Every publish is a versioned snapshot.</li><li>Compare it with the previous revision. Elements that changed appear by category: structural, MEP, envelope and interior.</li><li>Pin an issue to anything the change affects. It carries the sheet and revision.</li><li>The owner sees it in the 6am digest.</li></ul> <p>Nobody spends a coordination meeting finding out what moved. That takes about 15 minutes instead of a 90-minute meeting.</p> <p>Plans start at $260 per license per year for Basics and run to $590 for Max. Enterprise is custom. Weigh that against what a late spec change usually costs in rework.</p>