Hi

In terms of Erwin we can break a huge schema into smaller parts for easier managemant purpose and each part is known as subject area.

There is always a main subject area which holds entire schema and there can be n number of user defined suject areas as per our requirement.

Regards

Mehul Thakkar.

mehul.v.thakkar@gmail.com

Subject Area is place where we draw the entities and attributes of the dimensions and fact table with relationships in ERWIN