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Concerned with content, the Web is a very good example of this layer. It permits organizations to publish a full range of text and multimedia. There are three key elements of the Web:
- A uniform resource locator (URL), which is used to uniquely identify any server;
- A network protocol;
- A structured markup language, HTML.
Notice that the electronic publishing layer is still concerned with some of the issues solved by TCP/IP for the Internet part of the NII layer. There is still a need to consider addressability (i.e., a URL) and have a common language across the network (i.e., HTTP and HTML). However, these are built upon the previous layer, in the case of a URL, or at a higher level, in the case of HTML.
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