Chapter 2 Conceptual Data Model Basics

Entity display preferences

To set display preferences for entities, select Tools→Display Preferences, and select the Entity sub-category in the left-hand Category pane.

Entity

Preference Display description
Attributes Specifies whether Attributes are displayed on entity symbols. If selected, you can choose between displaying:

  • All attributes - All attributes including all identifying attributes:
  • Primary attributes - Only entity attributes that are primary identifier attributes:
  • Identifying attributes - All attributes that are defined as identifier attributes for the entity, including primary identifier attributes:
  • Display limit - Number of entity attributes shown depending on defined value. For example, if set to 5:
Identifiers All identifier attributes for the entity are listed at the bottom of the entity symbol:
Stereotype Stereotype of the entity.
Comment Comment of the entity. When selected, all other check boxes are deselected, except for Stereotype:

Entity attributes

Preference Display description
Data types Data type for each entity attribute:
Replace by Domains Domain for each entity attribute. You can only display domains when the Data type check box is selected.
Domains Domain of an attribute in an entity. This display option interacts with the selection for Data types. As a result, there are four display options:

  • Data types selected - Displays only the data type, if it exists:
  • Domains selected - Displays only the domain, if it exists:
  • Data types and Domain selected - Displays both data type and domain, if they exist
  • Data types and Replace by domains selected - Displays either data type or domain, if they exist, and domain if both exist:
Mandatory <M> indicators are displayed next to each mandatory entity attribute:
Identifier indicators <pi> indicators are displayed next to primary identifier attributes and <ai> indicators next to non-primary identifier attributes:
Stereotype Stereotype of the entity attributes

Entity identifiers

Preference Display description
Stereotype Stereotype of the entity identifiers

 

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