Relationship type properties
When adding or editing a relationship type, use this list as a reference for property names and descriptions for fields you can set in the Properties view.
You must be in the Expert Configuration editor, Relationship Types view. The following table contains a list of the property names and descriptions that you can set for a relationship type.
| Property | Description | |
|---|---|---|
| Directed | Indicates whether is a start and end point for the relationship. | |
| Enable tasks | Indicates whether the relationship type can make use of tasks. Setting this property to false prevents tasks of kind Entity Relationship or Member Relationship from being created for this relationship type. The default setting is true. | |
| Type | A simple descriptor for the relationship. This value must be unique. | |
| Left Enttype (Entity 1) | Indicates the entity record number (entrecno) of the item on the left side of the relationship. When an entity type is selected here, the Value column for the following nineteen properties (shown in the Properties view when the Left Enttype is expanded) is automatically populated with the matching properties for the selected entity. | |
| Linker can delete linker-created relationships? | Indicates whether the relationship linker can delete relationships it created if they do not conform to the established rules. | |
| Linker can delete user-created relationships? | Indicates whether the relationship linker can delete relationships created by a user if they do not conform to the established rules. | |
| Multiplicity | Indicates the constraints on a relationship. Choices are 1 to 1, 1 to Many, and Many to Many. | |
| Relationship Name | The consumable description of the relationship type. | |
| Relationship Type | A short description of the relationship, usually a single word. | |
| Reltypeno | A read-only field containing the RELTYPENO field from the operational server database. | |
| Required Hierarchy | Indicates whether this entity is required to appear at least once as the left or right entity in a relationship type. If Required Hierarchy is true, then the entity type for both left and right entities must be the same. Required Left and Required Right must both be false if Required Hierarchy is true. | |
| Required Left | Indicates whether the entity (of type right) must appear at least once on the RIGHT side of a relationship. If Directed is false and Right Enttype = Left Enttype, Required Left must be false. For example, a 1-to-Many relationship exists where the left entity is the boss and the right entity is the employee. When Required Left is true for this relationship, an employee must have a boss, so the employee must appear on the right side of a relationship at least once. | |
| Required Right | Indicates whether the entity (of type left) must appear at least once on the LEFT side of a relationship. If Directed is false and Right Enttype = Left Enttype, Required Right must be false. For example, a 1-to-Many relationship exists where the left entity is the boss and the right entity is the employee. When Required Right is true for this relationship, a boss must have at least one employee, so the boss must appear on the left side of a relationship at least once. | |
| Right Enttype (Entity 2) | Indicates the entrecno of the item on the right side of the relationship. When an entity type is selected here, the Value column for the following nineteen properties (shown in the Properties view when the Right Enttype is expanded) is automatically populated with the matching properties of the selected entity . | |
| Uses common membership rule | Indicates whether links are determined by common members in the entities involved in the relationship (implicit). | |
| Uses history | Indicates whether history is be kept for the selected member type. This property can also be set on the History tab. (See History.) | |