Common Data Model and API factory

The APIs are expected to be REST APIs or OData APIs or Webservices while data exchange formats are JSON, SOAP, OAGIS, and more. Newer versions of some COTS products are supporting REST or OData APIs OOTB. However, even to access data from a single COTS system, the business needs necessitates traversal of multiple objects. Its indeed a tough task to achieve in practice with an OOTB API. In addition, REST or OData APIs shipped with the COTS product work with its OOTB object model. However, many reasonably sized implementations require extensions of the OOTB model, and updates to its OOTB APIs. To address these challenges, IT departments have to have programmers code and maintain the APIs required to implement the CDM approach, making it a laborious and expensive approach.