Hi Srinivas,

In the domain model:

• Persistent Entities (stored in the Mendix database) are shown blue
• Non-Persistent Entities (only living in cache) are shown orange
• Remote Entitities (stored in external database/system) are shown purple
• View Entities (new feature in beta) are shown green

It's just to indicate if and where the data is persisted.

I agree it would be logical if this was listed on the documentation page about the Domain Model (https://docs.mendix.com/refguide/domain-model/), but it's only mentioned in the External Entity documentation (https://docs.mendix.com/refguide/external-entities/).

Kind regards,

Johan