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14.8. What is XML schema?XML data is structured. We can define what a complete purchase order looks like and then compare the documents we receive to that document. This is known as validation. One way to specify a document's structure is with the XML Schema Definition (XSD) language. XSD is an XML vocabulary used to articulate rules for business data. Example 14-1 shows the XML schema used in a web service that retrieves an address. Example 14-1. An XML schema
Based on this document, a program given the correct inputs can construct a valid XML message to call this functionality in an SAP system. |
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