If you are not into complicated systems architecture you won't get a lot out of this item. For the rest of us, this paper demonstrates the use of the MPEG-21 DIP and the NISO OpenURL formats for the distribution of complex objects in an OAI repository. As the authors conclude, "OpenURL has so far only been used to deliver services that were calculated based on metadata that describes a referenced resource. In the proposed solution, the services are based on the resource itself." The sort of thing enabled by this architecture is that the designer of a resource can code, say, a 'link' to the institution's library services, and the link can direct to the appropriate library depending on the context in which the resource is being used (that is, if I understand this correctly, and I think I do).
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