Methods, systems, and computer-readable storage media for extending a knowledge base, implementations including receiving an enterprise service signature (ESS) associated with an enterprise service (ES), the ESS being stored in a computer-readable repository, segmenting the ESS to provide a segmented ESS, identifying one or more unknown terms from the segmented ESS, determining that at least one unknown term of the one or more unknown terms comprises at least one of a specialization and a new entity, and extending the knowledge base in view of the at least one of the specialization and the new entity.