A name or identifier assigned to a contract.

effective_date (O, K, I: ndt_date)

The date that the alias was put into effect. Inherited from object_alias.


expiry_date (O, K, I: ndt_date)

The date at which the alias is no longer effective. Inherited from object_alias.


ref_naming_system (M, K, I: ref_naming_system)

Specifies the name space within which this object identifier is defined and is unique. Each contract_alias must defined within one ref_naming_system. Inherited from object_alias.


contract (M, K: contract(contract_alias))

Specifies the contract known by this identifier. Each contract_alias must identify one contract.


identifier (M: ndt_name) (1144)

A name or identifier assigned to a contract.


description (O, I: ndt_comment)

A description or remark about the alias. This may include information about the reason the alias exists, or a comment about the meaning or derivation of the alias. Inherited from object_alias.


data_collection (I, V: SET[0:?] data_collection(collection_content))

Indicates the data collections that include this instance of E and P data. Each contract_alias may be a member of one or more data_collection. Inherited from e_and_p_data.


datum_for_ranking (I, V: SET[0:?] object_ranking(base_object))

Indicates that an object is being used as a basis for comparison with another object. Each contract_alias may datum for ranking one or more object_ranking. Inherited from object_of_interest.


graphical_element (I, V: SET[0:?] graphical_element(depicted_object))

Specifies one or more graphical elements which are depicting this data item. Each contract_alias may be depicted by one or more graphical_element. Inherited from e_and_p_data.


object_of_ranking (I, V: SET[0:?] object_ranking(ranked_object))

Indicates that an object is being classified in a rank order based on its characteristics. Each contract_alias may object of ranking one or more object_ranking. Inherited from object_of_interest.

Local rules:

Uniqueness Constraint
effective_date, expiry_date, ref_naming_system, contract
Supertype path(s):
e_and_p_data > object_of_interest > technical_object > object_alias > contract_alias.

Entity projects as table CONTRACT_ALIAS.

Referenced in Diagrams:

• EPC1: Contracts and Agreements
• HL4: Object Aliasing