Is there any provision in Thingworx to generate a class diagram for the Information model used ?

Swetha Ramagoni​ - There is no such in built functionality in Thingworx that can generate class diagram of entities created in Thingworx .One way (not tested ) is you can take XML file of the entities and try generating the class diagram from that using a third party tool or something

Not quite a traditional class diagram but you may be interested to have a look - when you view a thing in your composer, navigate to the Dependencies tab on the left hand side and click 'Entity Depends On'. This will show you the 'Class diagram' on the Thing like an example shown from my system:

May or may not be of any use to you.

BW,

Andy