An electronic marketplace (e-marketplace) is a common business information space populated with many entities of different system types. Each of them has its own context of how to build and process documents. This leads to heterogeneous e-marketplace documents in terms of syntax and semantics, which are difficult to make interoperation and inference from one entity to another. This paper proposes CCDR approach to make a semantic inference on received documents in a realistic e-business scenario and implements the reasoning procedure by developing SDR system which integrates with a novel inference algorithm.