Distributed computing is a new paradigm in the field of resource sharing. Distributed computing seems as more promising in terms of request failure, security, flexibility and resource availability. It's main feature is to maintain the Quality of Service (QoS) provided to the end user in term of request processing power, request failure rate and many more. So resource management is important and maintaining least replication of resources and high security are of primary importance. To fulfill the above discussed parameters a aggregator based Distributed Digital Library System Integration model is proposed, to connect Digital library of different institutes of same organization.