Diagramming Entities

The entity symbol is a rectangle with the name at the top.

The entity name must be descriptive and meaningful.

An unambiguous text definition is important.

The entity graphic symbol may differ slightly by CASE tool or author but the shape is unimportant.

The entity name is how people will refer to the entity. In the conceptual model an entity name should not be limited by RDBMS product limits - this is a generic name for the business. When physical DBMS object names are assigned, be sure to take into account the naming limits and reserved words of your targe platforms.