What is an XML Schema? An XML Schema describes the structure of an XML document. The XML Schema language is also referred to as XML Schema Definition (XSD).

An XML schema is a description of a type of XML document, typically expressed in terms of constraints on the structure and content of documents of that type, above and beyond the basic syntactical constraints imposed by XML itself.

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. [1]

2018年3月9日 · XML Schemas express shared vocabularies and allow machines to carry out rules made by people. They provide a means for defining the structure, content and semantics of XML documents. in more detail.

An XML Schema describes the structure of an XML document, just like a DTD. An XML document with correct syntax is called "Well Formed". An XML document validated against an XML Schema is both "Well Formed" and "Valid".

2012年4月5日 · The purpose of XML Schema Definition Language: Structures is to define the nature of XSD schemas and their component parts, provide an inventory of XML markup constructs with which to represent schemas, and define the application of …

XML Schema Definition or XSD is a recommendation by the World Wide Web Consortium to describe and validate the structure and content of an XML document. It is primarily used to define the elements, attributes and data types the document can contain.

2006年3月17日 · XML Schema documents are thus easier to process using standard XML tools than DTDs are. It defines a set of simple types or datatypes for use in attribute values and simple element content (i.e. for elements with only character children); these include all the types most commonly found in programming languages and in database management systems ...

What is an XML Schema? To describe the structure of an XML document, an XML Schema is used. The XML Schema Definition (XSD) is the XML Schema language.

2018年11月2日 · Similar to DTD, XML Schema is also used to check whether the given XML document is “well formed” and “valid”. In this guide, we will learn what is an XML Schema, how it is better than DTD and Schema examples. XML schema is an alternative to DTD.