Reading notes for November 3 class

XML-subset of the Standard Generalized Markup Language (SGML)designed to make it easy to interchange structured documents over the Internet. XML allows users to bring multiple files together to form compound documents, identify where images are to be incorporated into text files, provide processing control information to supporting programs, and add editorial comments to a file. XML was not designed to be a standardized way of coding text. It is rather a formal language that can be used to pass information about the compound parts of a document to another computer system. XML is based on concept of documents composed of a series of entities. Each element has certain attributes. To use a set of markup tags that has been defined by a trade association or similar body. Because XML tag sets are based on the logical structure of the document they are somewhat easier to understand. AN XML file normally consists of three types of markup, the first two of which are optional: XML processing instruction, document type declaration, and document instance. By putting data in xml format, you can ensure that your data will be transferable to a wide range of hardware and software environments.