The fact that new fresh proxies occupy a very privileged within the Internet infrastructure since they are almost forced a passage in all transactions that take place between a community of users and “outside world”, whether for access to documents or services. In repeating the argument “Whereas Have Traditionally web servers been responsible for Producing all happy now Intermediaries Provide new places for Producing and Manipulating web data “we establish a parallel system computer who experienced a first centered development servers (mainframes) followed the evolution of client (PC) and the last one focused on middleware and generalization of N-Tier architectures. The use of intermediate is widespread in client / server architectures can be easily replaced by Middleware Proxy. In our context, new fresh proxies are therefore preferred for the intermediate element with the same ubiquity evolution which tends to confirm on the Web beginnings of a generalization is sketched in solutions as WBI.
There are 2 main qualities proxies relative to their situation and their perceptivity compared to the documents through. To take a picture of everyday life, the proxy is like the postman: a central element which is defined over neighborhoods it serves and discreet actor who has a great knowledge of global and individual habits of the inhabitants of that neighborhood.
We will discuss perceptivity when the proxy has access to the physical dimensions of the document and the data usage statistics. But when this perceptivity extends to patterns structured knowledge emerging in the structure of the Web.
We demonstrate that these two qualities in increasing proxies, we obtain a platform that enables improved by caching management policies more effective consideration of the ontological value of documents.
In addition, we give new fresh proxies to interact with users, Deputy their potential for community services and users. The interaction with the user assumes the means to establish a session with it, a concept that is only partially supported in the HTTP protocol and especially in a non-generalized to transactions made with a proxy. We propose to overcome this lack the definition of a holding mechanism between the user agent session and the proxy. This session allows interaction proxy / user and therefore the definition of profiles. These can be used to support the mobility, but also to collect detailed information in the same way that organizations post use knowledge of postmen for commercial censuses.