WORLD WIDE WEB ARCHITECTURE


The World Wide Web (WWW, or simply Web) is an information space in which the items of interest, referred to as resources, are identified by global identifiers called Uniform Resource Identifiers (URI). All TAG participants, past and present, have had a hand in many parts of the design of the Web. In the Architecture document,  Web Designing Company Jaipur

 they emphasize what characteristics of the Web must be preserved when inventing new technology. They notice where the current systems don't work well, and as a result show weakness. This document is a pithy summary of the wisdom of the community. This scenario illustrates the three architectural bases of the Web :  Web Development Company Jaipur


 • Identification (§2). URIs are used to identify resources. In this travel scenario, the resource is a periodically updated report on the weather in Oaxaca, and the URI is “http://weather.example.com/oaxaca”.


 • Interaction (§3). Web agents communicate using standardized protocols that enable interaction through the exchange of messages which adhere to a defined syntax and semantics. By entering a URI into a retrieval dialog or selecting a hypertext link, Nadia tells her browser to perform a retrieval action for the resource identified by the URI. In this example, the browser sends an HTTP GET request (part of the HTTP protocol) to the server at "weather.example.com", via TCP/IP port 80, and the server sends back a message containing what it determines to be a representation of the resource as of the time that representation was generated. Note that this example is specific to hypertext browsing of information—other kinds of interaction are possible, both within browsers and through the use of other types of Web agent; our example is intended to illustrate one common interaction, not define the range of possible interactions or limit the ways in which agents might use the Web. • Formats (§4). Most protocols used for representation retrieval and/or submission make use of a sequence of one or more messages, which taken together contain a payload of representation data and metadata, to transfer the representation between agents. The choice of interaction protocol places limits on the formats of representation data and metadata that can be transmitted. HTTP, for example, typically transmits a single octet stream plus metadata, and uses the "Content-Type" and 6 "Content-Encoding" header fields to further identify the format of the representation. In this scenario, the representation transferred is in XHTML, as identified by the "Content-type" HTTP header field containing the registered Internet media type name, "application/xhtml+xml". That Internet media type name indicates that the representation data can be processed according to the XHTML specification. 

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