Concept
XML Schema (W3C)
Overview
XSD (XML Schema Definition), a recommendation of the World Wide Web Consortium (W3C), specifies how to formally describe the elements in an Extensible Markup Language (XML) document. It can be used by programmers to verify each piece of item content in a document, to assure it adheres to the description of the element it is placed in.
Like all XML schema languages, XSD can be used to express a set of rules to which an XML document must conform to be considered "valid" according to that schema. However, unlike most other schema languages, XSD was also designed with the intent that determination of a document's validity would produce a collection of information adhering to specific data types. Such a post-validation infoset can be useful in the development of XML document processing software.
Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).
Possible passages
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Every proposition consists of three parts: the Subject, the Predicate, and the Copula. The predicate is the name denoting that which is affirmed or denied. The subject is the name denoting the person or thing which something is affirmed or denied of.
John Stuart Mill, A System of Logic
States what XML Schema is.
Kinds have a real existence in nature 134 5. Differentia 139 6. Differentiæ for general purposes, and differentiæ for special or technical purposes 141 7. Proprium 144 8. Accidens 146 Chapter VIII. Of Definition. § 1. A definition, what 148 2. Every name can be defined, whose meaning is susceptible of analysis 150 3. Complete, how distinguished from incomplete definitions 152 4. —and from descriptions 154 5. What…
John Stuart Mill, Index of the Project Gutenberg Works of John Stuart Mill
States what XML Schema is.
in it, is composed of very small parts [atoms] which are indivisible on account of their smallness; such an atom has no magnitude; but when several atoms combine, the sum has a magnitude, and thus forms a body.” If, therefore, two atoms were joined together, each atom would become a body, and they would thus form two bodies, a theory which in fact has been proposed by some Mutakallemim. All these atoms are perfectly…
Moses Maimonides, The guide for the perplexed
States what XML Schema is.
Related ideas
Place in the tradition
Part of Fuzzy logic.