Physical Data Models
Physical data models represent the design of data while also taking into account both the constraints and facilities of a particular database management system. Generally, it is taken from a logical data model. Although it can also be engineered in reverse from a particular database implementation.
All database artifacts that are needed to create relationships will be included on a physical data model. These include linking tables, indexes, constraint definitions, and partitioned clusters. The model can generally be used as a calculation device for figuring storage estimates. Storage allocation details for a particular system might be included. Physical data modeling is also referred to as database design.