Core services in the architecture of the national science digital library (NSDL)
Proceedings of the 2nd ACM/IEEE-CS joint conference on Digital libraries
Architectural styles and the design of network-based software architectures
Architectural styles and the design of network-based software architectures
DCMI '03 Proceedings of the 2003 international conference on Dublin Core and metadata applications: supporting communities of discourse and practice---metadata research & applications
Analyzing metadata for effective use and re-use
DCMI '03 Proceedings of the 2003 international conference on Dublin Core and metadata applications: supporting communities of discourse and practice---metadata research & applications
Improving metadata quality: augmentation and recombination
DCMI '04 Proceedings of the 2004 international conference on Dublin Core and metadata applications: metadata across languages and cultures
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Harvested metadata often suffers from uneven quality to the point that utility is compromised. Although some aggregators have developed methods for evaluating and repairing specific metadata problems, it has been unclear how these methods might be scaled into services that can be used within an automated production environment. One possible solution is a model of service interaction that enables loosely coupled third party services to provide metadata enhancements to a central repository, with interactions orchestrated by a centralised software application. This application, launched by an editor, then works to define collections by requesting web services from allied projects. In this paper, the service orchestration process is described from both perspectives.