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Term entries in the full glossary starting with the letter "V"

W3C Glossaries

Showing results 1 - 20 of 47

valid

From RDF Semantics (2004-02-10) | Glossary for this source

(adj., of an inference or inference process) Corresponding to an entailment , i.e. the conclusion of the inference is entailed by the antecedent of the inference. Also correct .
valid

From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source

An XML document is valid if it has an associated document type declaration and if the document complies with the constraints expressed in it.
valid

From Extensible Markup Language (XML) 1.0 (2000-10-06) | Glossary for this source

An XML document is valid if it has an associated document type declaration and if the document complies with the constraints expressed in it.
valid mathML data

From Mathematical Markup Language (MathML) Version 2.0 (2001-02-21) | Glossary for this source

MathML data that (1) conforms to the MathML DTD, (2) obeys the additional rules defined in the MathML standard for the legal contents and attribute values of each MathML element, and (3) satisfies the EBNF grammar for content elements.
valid style sheet

From Glossary of Cascading Style Sheets, level 2 CSS2 Specification (1998-05-12) | Glossary for this source

The validity of a style sheet depends on the level of CSS used for the style sheet. All valid CSS1 style sheets are valid CSS2 style sheets. However, some changes from CSS1 mean that a few CSS1 style sheets will have slightly different semantics in CSS2. A valid CSS2 style sheet must be written according to the grammar of CSS2. Furthermore, it must contain only at-rules, property names, and property values defined in this specification. An illegal (invalid) at-rule, property name, or property value is one that is not valid.
validating processors

From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source

Validating processorsMUST, at user option, report violations of the constraints expressed by the declarations in the DTD, and failures to fulfill the validity constraints given in this specification.
validating processors

From Extensible Markup Language (XML) 1.0 (2000-10-06) | Glossary for this source

Validating processors must[E21], at user option, report violations of the constraints expressed by the declarations in the DTD, and failures to fulfill the validity constraints given in this specification.
validation

From XHTML 1.0: The Extensible HyperText Markup Language (Second Edition) (2000-01-26) | Glossary for this source

Validation is a process whereby documents are verified against the associated DTD, ensuring that the structure, use of elements, and use of attributes are consistent with the definitions in the DTD.
validation rule

From XML Schema Part 2: Datatypes (2001-05-02) | Glossary for this source

Constraints expressed by schema components which information items satisfy to be schema-valid. Largely to be found in .
validation, validate, validating

From W3C QA - Quality Assurance glossary (2003-09-06) | Glossary for this source

The process necessary to perform conformance testing in accordance with a prescribed procedure and an official test suite.
validator

From Hypertext Transfer Protocol -- HTTP/1.1 (1999-06-15) | Glossary for this source

A protocol element (e.g., an entity tag or a Last-Modified time) that is used to find out whether a cache entry is an equivalent copy of an entity.
validity constraint

From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source

A rule which applies to all valid XML documents. Violations of validity constraints are errors; they MUST, at user option, be reported by validating XML processors.
validity constraint

From Extensible Markup Language (XML) 1.0 (2000-10-06) | Glossary for this source

A rule which applies to all valid XML documents. Violations of validity constraints are errors; they must, at user option, be reported by validating XML processors.
value

From XSL Transformations (XSLT) 2.0 (2007-01-23) | Glossary for this source

A variable is a binding between a name and a value. The value of a variable is any sequence (of nodes and/or atomic values), as defined in .
value

From XQuery 1.0: An XML Query Language (2007-01-23) | Glossary for this source

In the data model, a value is always a sequence.
value

From XML Path Language (XPath) 2.0 (2007-01-23) | Glossary for this source

In the data model, a value is always a sequence.
value space

From XForms 1.0 (2003-10-14) | Glossary for this source

From XML Schema [XML Schema part 2]: A set of values for a given datatype. Each value in the value space of a datatype is denoted by one or more literals in its lexical space.

variable

From XSL Transformations (XSLT) 2.0 (2007-01-23) | Glossary for this source

The xsl:variable element declares a variable, which may be a global variable or a local variable.
variable reference

From XQuery 1.0: An XML Query Language (2007-01-23) | Glossary for this source

A variable reference is a QName preceded by a $-sign.
variable reference

From XML Path Language (XPath) 2.0 (2007-01-23) | Glossary for this source

A variable reference is a QName preceded by a $-sign.

The Glossary System has been built by Pierre Candela during an internship in W3C; it's now maintained by Dominique Hazael-Massieux

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