Abstract

We propose an architecture for Digital Library Repositories that assures long-term archival storage of digital objects. The architecture is formed by a federation of independent but collaborating sites, each managing a collection of digital objects. The architecture is based on the following key components: use of signatures as object handles, no deletions of digital objects, functional layering of services, the presence of an awareness service in all layers, and use of disposable auxiliary structures. Long-term persistence of digital objects is achieved by creating replicas at several sites. KEYWORDS: Digital Library Repository, Archival, Longterm Preservation of Data. 1 INTRODUCTION A digital library repository (DLR) stores the digital objects that constitute the library. The two key requirements that distinguish DLRs from other information stores are archival storage and intellectual property management. The archival nature of a DLR means that the digital objects (e.g., documents...

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