TeSSI? is a state-of-the-art tool that improves upon the existing search and retrieval tools by extracting the meaning out of medical free text and placing the resulting medical ?concepts? in the document index instead of terms. This creates a very powerful environment allowing healthcare knowledge seekers to query content stores in natural language and retrieve highly relevant information with great accuracy.

TeSSI? represents a set of software components that perform semantic indexing, semantic searching, coding and information extraction. Instead of creating indexes containing words, TeSSI? creates indexes containing concepts, which are individual units of meaning that remain independent of language. The medical intelligence that TeSSI? needs to perform these activities is present in L&C?s LinKBase? medical ontology.