There are basically two kinds of View Relationships:
1) Automatically created View Relationships
These are created when one view contains attribute(s) from another view. When you hover your mouse over them, the linked attributes are highlighted.
Note that these View Relationships are only created when you link two views via View Properties | Attribute tab. The second option is to write the view SQL code in the View Properties | SQL tab. But in this case no View Relationship will be automatically created. If any of your colleagues creates views this way, you will need to organize them manually.
2) Manually created View Relationships
These are useful when you work with views that are linked via View Properties | SQL tab. Simply choose View Relationship from Model Objects toolbar and create a relationship between two views. Look at the following picture:
There are two views. View7 is linked to Entity9 via View Properties | Attribute tab. An automatic View Relationship has been created and when you hover your mouse over it, you can clearly see the linked attributes.
View5 is linked to View7. However, it’s not linked via View Properties | Attribute tab, but rather via manually written SQL code in **View Properties | SQL tab **(you can also call them Text Views). In this case, no automatic View Relationship is created and the view itself also doesn’t show the linked attributes. So, to organize things a little I added a View Relationship12 between View5 and View7 and I also added a note to View5 (View Properties | Note) which displays the linked attributes every time I hover my mouse over View5. It’s not as nice as automatically created View Relationships, but it’s better than nothing.
If you have moved some of your views to a new workspace, some of the automatically created View Relationships may not have been moved. They can be added to a new workspace easily. In new workspace, right-click anywhere and choose Fill Relationships to Workspace. This will add all View Relationships to your workspace that might have been missing (alternatively you can right-click a specific workspace in Model Explorer | Edit and choose which objects and relationships you want to move to the new workspace.)
One more thing which is useful for organizing your model is to use colors. Right-click any Entity/View, select Edit and change Brush Color to whatever you like.
Hopefully this cleared up things a little for you! If you have any more questions, feel free to ask!