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SOA Web Development Web Services WordPress But if you receive XML documents from another party, the validity of the documents has to be ascertained before the documents may be read and processed. An instance document may be processed against a schema to verify whether the XML document conforms to the rules specified in the schema, a process called schema validation.
Before we discuss when to use which attribute, we need to define the target namespace. A schema is a collection of type definitions and element declarations whose names belong to a particular namespace called a target namespace. Thus, a target namespace distinguishes between type definitions and element declarations from different collections.
About XML is an open standard for creating markup languages and exchanging structured documents and data over the Internet. Both IDEs are very important and their development will not stop. Notice that the tag and attributes you entered appear in the XSQL page. To move components by dragging In the visual editor or Structure window do either of the following: Drag the component s from the original position to a target position in the visual editor or Structure window. Not all options in the context menu are always available. Select one or more XSD components you wish to delete in the visual editor or Structure window. This book contains many practical and usefull tips on XML processing and tools as well.
An XML schema doesn't need to have a target namespace. If the XML schema does not have a target namespace, specify the schema location using the xsi:noNamespaceSchemaLocation attribute. The example XML schema document that we shall create is catalog.
The XML document instance that we shall generate from the schema is catalog. The XML schema may be in any directory. The example XML document does not include any namespace elements. Therefore, the schema is specified with the xsi:noNamespaceSchemaLocation attribute in the root element catalog.