I’ve read in What’s New in Entity Framework 5 Beta:
You can now create multiple diagrams for each entity data model.
Can any one guide me further about this feature and any getting started tutorial about this feature. Is this mean now we can have multiple edmx files to better manage large number of entities
It means that single EDMX file can now contain multiple diagrams which shows different part of your model mapped in that single EDMX file. Diagram is just a “view” on mapping defined in the EDMX file – previously you could have only single view per EDMX, now you can have more than one.
I don’t have VS11 installed on my current machine but as I remember you should be able to select entities in your current diagram and move them to a new / another diagram. You should also be able to manage diagrams and switch between diagrams from model browser.