xxllnc Expertsystemen makes automated back-ups of your project. Each time a model is saved, a backup is made. These are stored in the sub folder history of your model - which is automatically made when you create a new model. You can revert to an earlier version of the model by choosing File > Revert. This will open open a pop-up window with an overview of all back-ups. Any document added to your model are also saved by this mechanism.
Reverting a model
Revert to a chosen back-up by pressing [OK]. The backup will be moved from the backup folder and will overwrite the current model. Note that if there are more than 600 backups, xxllnc Expertsystemen will remove half of the last 200 backups, so you may not always have that many backups.
Explicit pinning
In the webstudio, it is advised to turn on auto-save, and explicitly
pin versions when you feel you need to.
Pinning happens in the File tab; when pinning, you add a message explaining the changes in that version:
Pinning an open model
Pinned versions are available through the history popup of a model.
A model in the history
There you can open a pinned version read-only, restore the version, forever delete it, and inspect differences with the current version.
Restoring
Restoring a model will overwrite the current version. The pinned version will remain in the history too.
Note this is a recent change soon to be rolled out. The current method is to add the restored model as a new model next to the current one under a different name.
If you want to restore a pinned version, but there do exist non-pinned changes after the youngest pinned version, you are offered to first pin the current version.
Pin offer
Note this differs from restoring a model from the Trash bin. Restoring a trashed model will simply add it to the model list and remove it from the Trash bin.
Inspecting differences
A tree of differences as compared to the current version (can be datatypes, information sources, chapters and things in questions, texts or source code - per graph/node as shown in this image)