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revision 1.17 by hemppah, Thu Nov 28 14:36:02 2002 UTC revision 1.18 by hemppah, Thu Dec 5 10:50:40 2002 UTC
# Line 76  from \cite{milojicic02peertopeer, oram01 Line 76  from \cite{milojicic02peertopeer, oram01
76  \section{What is Peer-to-Peer ?}  \section{What is Peer-to-Peer ?}
77    
78  \subsection{Definition}  \subsection{Definition}
79  Altough the exact definition of "peer-to-peer" is debatable, these systems typically lack dedicated, centralized  Altough the exact definition of "peer-to-peer" (P2P) is debatable, these systems typically lack dedicated, centralized
80  infrastructure, resources and services depends on the voluntary participation of peers. Because of that, the  infrastructure, resources and services depends on the voluntary participation of peers. Because of that, the
81  challenge of such systems is to determine a archictecure for deploying participants in a such way so that they  challenge of such systems is to determine a archictecure for deploying participants in a such way so that they
82  can efficiently cooperate to provide services and resources to the entire system. The resources comprise of  can efficiently cooperate to provide services and resources to the entire system. The resources comprise of
# Line 150  example of this kind of approach in mode Line 150  example of this kind of approach in mode
150  \subsection{Characteristics of Peer-to-Peer}  \subsection{Characteristics of Peer-to-Peer}
151    
152  Decentralization  Decentralization
153  Scalability and adapion  In traditional client-server relationship, resources is preserved in centralized servers and distributed
154    through network to client computers. P2P, however, takes a different approach; there is no centralized
155    server or authority for distributing resources in the P2P network. Perhaps one of the most powerful ideas
156    of decentralization is the stress on the participant's ownership and control of resources. As a implication
157    in a fully decentralized system, every peer is an equal participant of the community.
158    
159    Scalability and Adaption
160    Natural advantage of decentralization is improved scalability of the system. In P2P, scalability is limited
161    by factors such as centralized manageability that needs to be performed and the amount of states need to be
162    maintained. As cited in \cite{milojicic02peertopeer}, good scalability should not be achieved by the expense
163    of other desirable features, such as determinism and performance guarantees.
164    
165    
166    
167    
168  Anonymity and Autonomy  Anonymity and Autonomy
169  Self-organization  Self-organization
170  Cost Of ownership  Cost Of ownership

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