Official Endpoint (Erl)
Joint application of Logic Centralization and Contract Centralization.
As important as it is to clearly differentiate Logic Centralization from Contract Centralization, it is equally important to understand how these two fundamental patterns can and should be used together.
Applying these two patterns to the same service realizes the Official Endpoint compound pattern. The repeated application of Official Endpoint supports the goal of establishing a federated layer of service endpoints, which is why this compound pattern is also a part of Federated Endpoint Layer.