With Astah System Safety, you can compare models and diagrams in two project files. Differences can be shown in a list and also in diagrams visually with markups.
Open a file then go to [File] – [Compare Project and Merge].
Select another project file to compare.
[Differences] pop-up opens with a list of diagrams and models of both project files in a tree view side-by-side.
Diagrams and models that have differences will be indicated with color: – Blue: This model exists in both files but something is different than one in another file – Red: The model does not exist in the file but exists in another file – Green: The model exists only in one file and not in another file
If you want to see the differences in diagrams visually. Select a diagram in the tree view and click [Open Compare Diagram].
Two diagrams open with markups.
You can merge files
If you’d like to merge two projects into one after comparing the models, click the [Merge] button.