XML-Based Representation

摘要

For focused applications with limited user and use application communities, XMLcan be the right choice for representation. It is easy to use, maintain, and extend and enjoys wide support in commercial and research sectors. When the knowledge and information to be represented is object-based and use of that knowledge and information is a high priority, then XML-based representation should be considered. This paper discusses some of the issues involved in using XML-based representation and presents an example application that successfully uses an XML-based representation. Keywords: knowledge representation, XML, object-based representation grammar for a markup language. The three constructs are element, attribute, and entity. Attribute constructs are associated with element constructs. An entity construct is like a macro that can be expanded. Any duplicated definitions can be specified as an entity and called to save time and lengthy text repetition. In an object-based context an element is an object and an attribute is an object attribute. Attributes are the properties and characteristics of an object.