Response times in N-user replicated, centralized, and proximity-based hybrid collaboration architectures

We evaluate response times, in N-user collaborations, of the popular centralized (client-server) and replicated (peer-to-peer) architectures, and a hybrid architecture in which each replica serves a cluster of nearby clients. Our work consists of definitions of aspects of these architectures that have previously been unspecified but must be resolved for the analysis, a formal evaluation model, and a set of experiments. The experiments are used to define the parameters of and validate the formal analysis. In addition, they compare the performances, under the three architectures, of existing data-centric, logic-centric, and stateless shared components. We show that under realistic conditions, a small number of users, high intra-cluster network delays, and large output processing and transmission costs favor the replicated architecture, large input size favors the centralized architecture, high inter-cluster network delays favor the hybrid architecture, and high input processing and tran...

• Type: Conference
• Year: 2006
• Where: CSCW
• Authors: Sasa Junuzovic, Prasun Dewan
• Keywords: CSCW 2006, Hybrid Architectures, Network Delays, Response Time, Social Sciences