The Save and Undo/Redo functions
Unlike in the ARIS standard, in ARIS UML Designer many elements and relationships are not created and edited graphically in diagrams, but in the Explorer tree and in Properties dialogs. Therefore, the Explorer tree is far more important as a modeling component than is the case in the ARIS standard. There, the tree is primarily used for editing the group hierarchy, creating diagrams, and for navigation.
In ARIS UML Designer, changes made in Explorer are not saved until current changes are saved in the database. In addition, changes can be undone provided they have not yet been saved. Only functionalities that are processed on the ARIS server require the changes to be saved immediately, for example, copying structures in Explorer.
Apart from editing the graphic properties of an element presentation, UML elements can be edited in various components in ARIS UML Designer. For example, it is totally irrelevant whether you select a class in the Explorer tree or in one of the diagrams to edit attributes, operations, or other properties on the General properties page.
All changes made to an element in a component of ARIS UML Designer are immediately displayed in all other components. In particular, the Explorer tree displays elements created or renamed in diagrams immediately and not only after saving, as is the case in ARIS Architect/ARIS Designer.
In addition, a change to an element in the Explorer tree or in a diagram can result in changes in other diagrams if edges or nesting relationships that appear there are rendered invalid by the change.
Because of the facts outlined, in terms of the Save and Undo/Redo functions ARIS UML Designer has very different behavior than ARIS Architect/ARIS Designer:
The Save function always saves all changes you have made. Changes in the Explorer tree are also not saved until this time.
The Undo/Redo functions operate globally across Explorer and diagram boundaries.