ISO/IEC TR 22250 Regular Language description for XML (RELAX)
ISO/IEC TR 22250 Regular Language description for XML (RELAX) is a technical report that provides language descriptions for the Relaxation Modules of the ISO/IEC 14882:2006 standard.
What is ISO/IEC TR 22250-1:2002 Information technology — Document description and processing languages — Regular Language Description for XML (RELAX) — Part 1: RELAX Core
The ISO/IEC TR 22250-1:2002 standard specifies a relaxation of the ISO/IEC 15924-2:2006 standard, which defines the XML language. The RELAX Core specification defines a core set of Relaxation Annotations and other facilities that are needed in order to support the production and use of Relaxed XML documents.
The RELAX Core specification is divided into four parts: Parts 1, 2, 3, and 4. Part 1 provides a definition of the Relaxation Annotations and their associated annotation types. Part 2 defines the Relaxation Processor interface and the Relaxation Annotation Registry. And, Part 3 defines the Relaxation Model and its supporting data structures. Part 4 provides an overview of the RELAX architecture and describes how to create a Relaxation Engine.
The RELAX Core specification is intended for use with XML documents that conform to the XML Schema definition provided in ISO/IEC 14651:2004, which is also part of this standard.
What are the requirements of ISO/IEC TR 22250-1:2002?
In order to be a conformant XML document, an XML document must satisfy the following requirements:
The XML document must be well-formed. This means that all of the elements and attributes in the document must be properly defined and placed in the correct positions.
The XML document must be valid. This means that it must meet all of the syntactic and semantic requirements of the XML standard.
At Last, The XML document must be transparent. This means that it should not affect the behavior of any other applications or documents that are processed with an XML parser.
What are its benefits ?
It is a standard that describes the Relax language. In Fact, Relax is a machine-readable, declarative, and procedural language for describing information systems.
The benefits of ISO/IEC TR 22250-1:2002 include the following:
– It is a machine-readable standard
– It is declarative
– And It is procedural
Thus, these features make this standard ideal for describing information systems. They also make it possible to generate code automatically.
This standard is currently being used to create applications and software systems. It is also being used to create documentation and other related materials.
Who needs this standard?
ISO/IEC TR 22250-1:2002 is not required for the purpose of describing XML. ISO/IEC TR 22250-1 is a general language description for XML. Also, ISO/IEC TR 22250-1 does not provide specific semantics for XML or any other language. It is not a standard specification and it is not a normative document.
The ISO/IEC TR 22251:2006 provides specific semantics for XML. ISO/IEC TR 22251:2006 specifies the Document Type Definition (DTD) and the syntax of XML documents. ISO/IEC TR 22251:2006 also defines the Abstract Syntax Notation One (ASN.1) profile for encoding schemas in XML documents.
And ISO/IEC TR 22252:2007 specifies a process model for creating, editing, and verifying XML documents. ISO/IEC TR 22252:2007 also defines an interface to an XSD schema editor that supports the creation and editing of XSD schemas in XML documents.
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