GRID-DL - Semantic GRID Information Service

The effectiveness of modern complex Grid systems strongly depends on the availability, accuracy and relevance of information on all connected resources, their characteristics and state. An access to this information plays a very important role in any Grid system, providing necessary information for other Grid components and users. We set a goal for "intellectualization" of key Grid systems to promote it to a larger audience of users that sometimes have difficulties adjusting to way Grid is operated. We believe that application of semantic technologies opens up many new possibilities and prospects for further improvement of the basic elements of Grid systems, promoting the emergence of new models of user interaction with them. In this work we present Grid-DL a prototype semantic Grid information service that relies on ontologies in order to build up a knowledge base of Grid resources and process user queries to it. We share our experience designing an idea of “pluggable” ontologies and sufficient core system taxonomy, while facing severe performance challenges implementing our system.