High-performance, Large Scale Data Handling in Tactical Environments

The proposed DiSIS product will permit users to issue semantically rich queries to a federation of data repositories without requiring the user to be aware of the nature, content or location of the source repositories. The solution will also make it possible to quickly add new repositories to the operational system (i.e., on the fly) using provided tools for aligning the repositories"data models to the DiSIS ontology. This product will dramatically simplify the organization, maintenance and querying of large collections of data services and permit general users to access knowledge otherwise inaccessible behind technological barriers and incompatible access mechanisms. In Phase I a limited but functional feasibility prototype of DiSIS was demonstrated on a sample of maritime track data (both OTH-Gold and AIS) residing in a relational database and an RDF data store. In Phase II, DiSIS will be enhanced and expanded into a fully functional, field-tested prototype capable of handling a wider array of repository types covering a broader range of content and formats while permitting semantically richer and more complex user queries via a simple to use graphical interface.