The revision history feature in StreamBIM tracks changes in models. Each time the models are processed, we track which objects are created, changed and deleted. Changes to objects include changes made on properties. The changes are presented in a dashboard showing changes made since the last model processing. You can also view changes on individual objects, as well as using changes as part of IFC searches in StreamBIM.

All projects can see a summary of the changes between the current versions of the models and the previous conversion. On projects using with the Revision History feature activated you can access revision history on the last 10 conversions, as well as select up to 10 conversions for permanent access, allowing you to drill down into the the changes and get useful insights into how your project is progressing. Contact sales to activate revision history.

 The Revision history dashboard

You can access the revision history dashboard from several places in StreamBIM.

• Under the list layers - click on "Show changes"

This opens the revision history dashboard, where you can drill into the changes on specific object types or properties using the buttons and links in each category:

Click on a category and you filter on the objects affected by the change:

The full screen view shows all changes in a dashboard:

Using the dashboard you can drill into changes on object and properties. In the full screen view you can get the overview. Use the sidebar view when you select a category and you see the objects affected by the change highlighted in the model view.

Revision history in the object information tab

You can access revision history overview from object information - Click the arrow on the top left in the object history tab:

Select Revision history:

This brings you to the Revision history dashboard described above.

Revision history on single objects

To look at the Revision history on a single objects, click on an object to open its information tab and scroll to the bottom of the information:

Select "Revision history" and you can look at the changes on that particular object. click on the arrow on the top left to get back to object information.

Revision history in IFC searches

You can combine IFC searches with revision history, allowing to view changes on a filtered set of objects, comparing properties and values between two conversions. The following search criteria are available on Revision history enabled projects:

• By object change status - Created, updated or deleted
• By object added date - the date that the object was added in StreamBIM (via IFC import).

Here's an example showing a search on changed windows using search criteria:

• IFC type = window
• Change status = updated
• Model revision = current

Opening the object list allows you to drill down into the changes:

1. Open the object list.
2. The changed properties are highlighted in yellow,.
3. You can select which model revisions to compare here.

 

Model revisions admin page

This page is only available for project admins. Here you can select which conversions you want to persist and the conversions a title.

1. Open the Model Revisions tab.
2. Toggle on/off for saving the conversion.
3. Give the conversion a title making it easy to identify it.
4. This displays the change balance. StreamBIM can save up to 1 million changes.
5. The numbers of added , changed and deleted object is displayed here. Click on these to open the revision history dashboard.