XML schema


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XML schema

(data)
XML data that describes the relationship between elements and attributes in some other class of XML data. A schema may or may not include data type representations. XML schemas are a more advanced alternative to DTDs.

http://vbxml.com/conference/wrox/2000_vegas/text/kurt_schema.asp

XML schema

The definition of an XML document, which identifies the XML tags and includes the rules for their interrelationships; for example, there must be at least one B tag within every tag A, or there can only be B tags within an A tag, and so forth. This is like any common relationship in a database, such as each customer can be associated to order records, but not to payroll records, or each department must have one or more employees.

Residing within the document itself, an XML schema is commonly used to verify the integrity of the content. Various recommendations for an XML schema were submitted to the W3C, and a standard was approved in May 2001 that included the ability to define data by type (date, integer, etc.) just like database records. See XML, W3C XML Schema, RELAX NG, Schematron, SOX, XDR, DCD, XML-Data, DDML and XML vocabulary.
References in periodicals archive ?
To get XML Schema, first according to relational database system to solve relational mode and then reconstruct directed graph, the mapping of the mapping structure which is generated by directed graph and the directed graph is XML Schema.
As a starting point we assume that XML data sources (XML documents) are conformed to XML schema W3C XSD.
[7.] W3C, "XML Schema Part 0," W3C Recommendation, Oct.
XSD2OWL provides transformation of an XML Schema into an OWL ontology and XML2RDF enables transformation of XML into RDF [24].
Given that the AbstractXmlDocument class knows nothing yet about the format and contents of the actual XML file on disk, the XML schema details to validate against will have to be provided by upper levels in the class hierarchy, from derived classes.
OWL ontologies are based on XML schemas. The fact that XML schemas are software artefacts, which claim an increasingly central role in software construction projects, has been noted by [10].
From a tooling perspective, a mapping application that can plug into the source (and target) system and is compatible with XML schema will be necessary.
ER/Studio version 7.5 offers support for XML schema generation, allowing data modelers and application developers to collaborate on service-oriented architecture (SOA) initiatives.
MADS is an XML schema for an authority element set that can be used to provide metadata about agents (people, organizations), events, and terms (topics, geographics, genres, etc.).
Software vendors and systems integrators transform production and business processes into a set of XML schemas. These schema define the process according to the applicable ISA-95 object model and the specific XML Schema language (XSD) that describe that process.