1. A non-transitory computer-readable storage medium having stored thereon computer executable program code which, when executed on a computer system, causes the computer system to perform steps comprising: discover a Service Adaptation Definition Language (SADL) definition, the SADL definition representing a plurality of business entity types each associated with a model layer framework and each of the plurality of business entity types including at least one business entity; display, on a user interface, a representation of the SADL definition; receive an indication of a first selection of a first business entity type of the plurality of business entity types; receive an indication of a second selection of a second business entity type of the plurality of business entity types, the second business entity type being associated with a different model layer framework than the first business entity type; and define a new user interface using the first and second business entity types, wherein the new user interface works with the model layer framework of the first business entity type and with the different model layer framework of the second business entity type.