Two fundamental distinctions separate OSS/CAD from traditional OSS data integration tools:

1. The use of semantics enables incremental and low-risk data unification
Using ontological models, OSS now needn't be tightly coupled with unified service model definitions. Instead, loosely coupled systems can be joined using a shared semantic framework, reducing the cost and complexity of any retrospective changes to the model or the data.

2. Knowledge representation is the basis for extra applications
Whilst existing technologies attempt to provide a unified data federation view, they don't allow additional applications to be added out of the box. However, OSS/CAD can be extended to add end-to-end applications, layered over the virtual unified service model

Ontology’s unique approach will help CSPs by providing them seamless service modeling and service management capability in an agile, cost-effective manner.
Arindam Banerjee
Director, Enabling Technologies Service Provider Software Solutions
Yankee Group, 2009