Dermot Russell

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XML and CORBA are key technologies for building distributed systems, but both have evolved separately by addressing different needs of content management and distributed applications. This article illustrates how these technologies can benefit from each other. XML XML and related specifications are addressed on the W3C Web site (www.w3c.org) and in other articles in this journal. This section looks at the structure of an XML application as depicted in Figure 1. The entity manager reads XML documents from some virtual storage - a database, a file or some other mechanism - and creates XML entities, a term used to describe XML elements. This data is passed to an XML parser, which can optionally validate the document using either the DTD or, in the future, one of the semantic specifications (e.g., DCD, RDF). The application code accesses this data using the DOM or simi... (more)