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revision 1.154 by hemppah, Tue Mar 18 14:12:50 2003 UTC revision 1.155 by hemppah, Tue Mar 18 14:32:00 2003 UTC
# Line 82  vertaisverkosta Fenfire-tietoa. Line 82  vertaisverkosta Fenfire-tietoa.
82  Peer-to-Peer systems have recently received considerable attention in both  Peer-to-Peer systems have recently received considerable attention in both
83  academia \cite{projectirisurl} and industry \cite{p2pworkinggroup, jxtaurl} for a  academia \cite{projectirisurl} and industry \cite{p2pworkinggroup, jxtaurl} for a
84  number of reasons. The lack of centralization in Peer-to-Peer systems  number of reasons. The lack of centralization in Peer-to-Peer systems
85  means that the participants can form a distributed system without any investment to  means that the participants can form a distributed system without any investment to centralized
86  centralized hardware, which would coordinate it by sharing their services  hardware, which would coordinate it by sharing their services and connecting to each other directly
87  and connecting to each other directly. Additionally, the distributed and ad hoc nature of  \cite{couloris94distributedsystems}. The distributed and ad hoc nature of Peer-to-Peer improves
88  Peer-to-Peer improves scalability and avoids single points of failure.  scalability and avoids single points of failure. Schollmeier \cite{schollmeier01p2pdefinition}
89    describes Peer-to-Peer system as a system of distributed entities that share their own services.
90  There are many definitions of Peer-to-Peer networks. Schollmeier \cite{schollmeier01p2pdefinition}  Peer-to-Peer systems can be characterized as distributed systems in which all communication is
91  describes Peer-to-Peer system as a system of  symmetric and all participant entities have similar capabilities and responsibilities.
92  distributed entities that share their own services. Indeed, Peer-to-Peer systems can be characterized as distributed  Each entity, i.e., \emph{peer}, may contribute services to the overall system.
 systems in which all communication is symmetric and all participant entities have similar  
 capabilities and responsibilities. Each entity, i.e., \emph{peer}, may contribute services  
 to the overall system.  
93    
94  The Fenfire project is an attempt to build a hyperstructured, seamlessly interoperating desktop  The Fenfire project is an attempt to build a hyperstructured, seamlessly interoperating desktop
95  environment. In the Fenfire, all data is stored as data blocks.    environment. In the Fenfire, all data is stored as data blocks.  

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