| Business Data Model Data Model |
| Description | A group that contains all the elements that are at the same level in a hierarchy. Nodes that comprise a hierarchy level are not necessarily all child nodes of the same parent node. They are nevertheless placed on the same logical level in the hierarchy For example: All the cities in an administrative division hierarchy are part of the same level, regardless of what country or region they belong to. |
| Attributes | |
Bottom Level Ind |
|
Hierarchy Level Num |
|
Hierarchy Level Type |
|
Top Level Ind |
|
| Relationship | |
Hierarchy Level_Hierarchy Level_FK |
|
| Generalization | |
Generalization1 |
|
| Dependencies | |
NONE |
|
| Reverse Dependencies | |
|
|
| Attribute Details |
Bottom Level Ind
| Description | Indicates whether the hierarchy level is at the bottom of the hierarchy. |
| Data Type | Standards - Data Domains.ddm/Data Domains/Boolean Indicator [INTEGER] |
| Is Part Of PrimaryKey | false |
| Is Required | false |
| Is Derived | false |
| Is Surrogate Key | false |
Hierarchy Level Num
| Description | A zero-based integer that shows the depth at which the hierarchy level is in the hierarchy. Level number 0 indicates the topmost level (the coarsest grained concept). The sequence of the level numbers indicates the hierarchy levels. |
| Data Type | Standards - Data Domains.ddm/Data Domains/Number Integer [INTEGER] |
| Is Part Of PrimaryKey | false |
| Is Required | false |
| Is Derived | false |
| Is Surrogate Key | false |
Hierarchy Level Type
| Description | Indicates the type of hierarchy level. For example: In the administrative division hierarchy, the levels are country, state, county, and city. |
| Data Type | Standards - Data Domains.ddm/Data Domains/Enumeration [VARCHAR(20)] |
| Is Part Of PrimaryKey | false |
| Is Required | false |
| Is Derived | false |
| Is Surrogate Key | false |
Top Level Ind
| Description | Indicates whether the hierarchy level is at the top of the hierarchy. |
| Data Type | Standards - Data Domains.ddm/Data Domains/Boolean Indicator [INTEGER] |
| Is Part Of PrimaryKey | false |
| Is Required | false |
| Is Derived | false |
| Is Surrogate Key | false |
| Relationship Details |
Hierarchy Level_Hierarchy Level_FK
| Description | A self-referencing Fk associating one Hierarchy Level to another. |
| Is Identifying Relationship | false |
| Child Table | Hierarchy Level |
| Child Role Name | has parent |
| Child Multiplicity | ZERO_TO_MANY |
| Child Referential Integrity: On Delete | NONE |
| Child Referential Integrity: On Insert | NONE |
| Child Referential Integrity: On Update | NONE |
| Parent Table | Hierarchy Level |
| Parent Multiplicity | ZERO_TO_ONE |
| Parent Referential Integrity: On Delete | NONE |
| Parent Referential Integrity: On Insert | NONE |
| Parent Referential Integrity: On Update | NONE |
| Generalization Details |
Generalization1
| Supertype | Group |
| Subtype | Hierarchy Level |
| Transform As | TABLE |
| Business Data Model Data Model |