ER/Studio - Embarcadero Technologies Product Documentation

TUTORIALS > LOGICAL AND PHYSICAL MODELING
4 Collapse the folders in the Data Model tab of the Data Model Explorer to look like the image below:
In the Orders.DM1 sample model, there are no physical models. This model includes several submodel folders
that help to describe the logical model:
• Main Model – This is the entire collection of all logical objects for the Orders.DM1 file. Note the absence of the
magnifying glass on the folder icon which designates it as the main model.
• Bill of Materials through Shopping Cart – These are submodels, which are smaller collections of entities
derived from the Main Model that help to describe specific areas of the Main Model free from other entities.
• Alternate Key through Primary Key – These are nested submodels, which can go ‘n’ levels deep and are
literally submodels of submodels.
Feel free to explore. Click the plus sign (+) to expand these folders.
Let’s create a submodel with all the objects related to the Orders.DM1 Address components.
EMBARCADERO TECHNOLOGIES > ER/STUDIO® 8.0.3 USER GUIDE 345