What is schema namespace?

What is schema namespace?

Figure 1: Elements and attributes in XML Schema namespace are used to write an XML Schema document, which generates elements and attributes as defined by user and puts them in {target namespace}. This {target namespace} is then used to validate the XML instance.

What is schemaLocation in XML?

The schemaLocation attribute references an XML Schema document that has a target namespace.

What is a target namespace?

XML has a mechanism for qualifying names to be allocated into different namespaces, such as namespaces that apply to different industries. In XML, a uniform resource identifier (URI) provides a unique name to associate with the element, attribute, and type definitions in an XML schema.

What is namespace in WSDL?

targetNamespace is the logical namespace for information about this service. WSDL documents can import other WSDL documents, and setting targetNamespace to a unique value ensures that the namespaces do not clash. xmlns is the default namespace of the WSDL document, and it is set to http://schemas.xmlsoap.org/wsdl/ .

What is the purpose of XML namespaces?

An XML namespace is a collection of names that can be used as element or attribute names in an XML document. The namespace qualifies element names uniquely on the Web in order to avoid conflicts between elements with the same name.

What does the schemalocation attribute in XML mean?

The schemaLocation attribute references an XML Schema document that has a target namespace. The location of a schema that contains qualified (a schema with a namespace) schema constructs. The first URI reference in each pair is a namespace name, and the second is the location of a schema that describes that namespace.

When to use XSI, schemalocation, and targetnamespace?

In your example, there is a namespace, so you properly use xsi:schemaLocation, whose values are space-separated pairs of namespace and XSD-location-URI. Your example uses the namespace, http://maven.apache.org/POM/4.0.0, and namespaces are lexical naming constructs that need not be retrivable.

Do you need a namespace for an XML Schema?

An XML Schema is not required to have a namespace. To specify the location for an XML Schema that does not have a target namespace, use the noNamespaceSchemaLocation attribute. The XML Schema referenced in this attribute cannot have a target namespace. Because this attribute does not take a list of URLs, you can only specify one schema location.

How are namespaces used to break up schemas?

Namespaces are a mechanism for breaking up your schemas. Up until now we have assumed that you only have a single schema file containing all your element definitions, but the XSD standard allows you to structure your XSD schemas by breaking them into multiple files.

What is schema namespace? Figure 1: Elements and attributes in XML Schema namespace are used to write an XML Schema document, which generates elements and attributes as defined by user and puts them in {target namespace}. This {target namespace} is then used to validate the XML instance. What is schemaLocation in XML? The schemaLocation attribute…