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Conclusion and Future Work
This paper describes ongoing work to build a resource discovery system that provides services for
collecting, categorizing, organizing, and discovering information stored in a distributed environment. Beyond
its potential use in operational environments it has further value as an extendible testbed for incorporating
additional advanced information processing technologies as they become available. As such, the system
provides a framework for evaluating both enabling information handling technologies and a basis for assessing
integration strategies. More specifically, planned enhancements include extending the Harvest Gatherer to
provide a range of new services to include generation of a '"richer" abstraction of an object's content, to
provide built-in methods for handling access controls, security, and cost accounting. These extensions will
provide a "Smart" Gatherer capability that will be more viable in disparate information environments;
especially where information is managed in autonomous collections and cannot be "freely" accessed. Scaling
issues will provide another major focus and will include efforts directed at making the system more scalable
through the use of replicated components (e.g., GDS and BIS). Finally, work will focus on developing the
post-retrieval and pre-retrieval toolsets that will be used to provide query enhancement capabilities,
visualization tools, and personal information management capabilities.