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Institute for Computing Systems Architecture

Dependable Peer-to-Peer Systems Design

Prof. Ian Sommerville
Computing Dept
Lancaster University

Peer to peer (p2p) systems offer opportunities to make efficient use of distributed computing resources. However, there have been few business applications of this class of system because system designers lack knowledge of application areas where p2p technology can be effectively deployed and the characteristics of different p2p system organisations.

This talk will discuss a number of issues that have to be taken into account in the design of peer to peer systems where dependability is a critical system attribute. These include dependability characteristics of peer to peer systems, peer to peer system architectures and the relationships between system dependability and system architecture. I will present a method for p2p systems specification and design that is intended to provide active support for the development of p2p systems in a business environment. Driven by business and dependability requirements, this method supports the elicitation of system requirements at different levels of detail and helps the system designer choose appropriate p2p architectures that are compatible with the required system dependability characteristics.


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