[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] questions concerning RDF/DOM/XML Schema
Hello XML-experts, I would like to ask some questions. I hope somebody can find the time to answer it for me. I am writing a thesis about XML and related components like RDF, DOM and XML Schema. Statement1: XML Schema is a replacement for DTD's. It is possible to describe the physical structure of the information-elements (just like DTD's), but XML Schema goes further. It also adds the possibility for expressing datatypes. DTD's have no possibility to describe the logical structure of the information-elements. (Describing logical structure of a document is the same as describing the semantic structure of a document.) Q1: Is statement1 correct? Q2: Does XML Schema has the possibility to describe the logical structure of a document? Statement2: The DOM is an api. It represents an XML-document in a tree-like structure. This 'tree' is regarded as an object with several objects inside it, representing each information-element. The DOM can only access/manipulate/delete the physical structure of the information-elements. The DOM knows nothing about the logical/semantic structure of the information-elements? Q3: Is statement2 correct? Statement3: RDF is a model of metadata(=data about the logical/semantic structure). An RDF-Schema is used to describe the logical/semantic structure for a particular document, according to the rules of the RDF data model. RDF has nothing to do with describing the physical structure of a document. Q4: Is statement3 correct? Q5: If XML Schema has the possibility to describe the logical structure of a document (see Q2), then what is the difference betweeen describing the logical structure in RDF-Schema or XML Schema? Q5: When you know everything about the physical structure of a document, you also know already a great deal about the logical structure of a document. Is this correct? My thesis has nothing to do with the technical aspects of XML and related components. I am only interested conceptual frameworks behind the different components. Thanks in advance, Marco Kleefman The Netherlands xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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