Maintaining foreign key references across domains

A system comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• define an enterprise data model comprising a first entity, a second entity, and metadata, wherein the metadata describes a foreign key reference between the first entity and the second entity and an approach for maintaining the foreign key reference, wherein the first entity is located in a first domain and the second entity is located in a second domain, and wherein the metadata specifies that attributes in the second entity are to be queried in real-time using an application programming interface (“API”);
• deploy components of the enterprise data model in the first domain;
• generate an artifact based on the metadata that maintains the foreign key reference between the first entity and the second entity, wherein the artifact comprises an API specification providing for data-lookup from the first entity to the second entity via an API call;
• and
• in response to a data change in the second entity, executing the API call to query data in the second entity, receive a result from the API call, and update the first entity based on the result.

A non-transitory computer-readable device having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations comprising:

• defining an enterprise data model comprising a first entity, a second entity, and metadata, wherein the metadata describes a foreign key reference between the first entity and the second entity and an approach for maintaining the foreign key reference, wherein the first entity is located in a first domain and the second entity is located in a second domain, and wherein the metadata specifies that attributes in the second entity are to be queried in real-time using an application programming interface (“API”);
• deploying components of the enterprise data model in the first domain;
• generating an artifact based on the metadata that maintains the foreign key reference between the first entity and the second entity, wherein the artifact comprises an API specification providing for data-lookup from the first entity to the second entity via an API call;
• and
• in response to a data change in the second entity, executing the API call to query data in the second entity, receive a result from the API call, and update the first entity based on the result.