The first step is to select the system business object to be exposed as an XML based message. The following section describes how a business object is selected.
In your product, business objects are implemented as services. For each service, there exists a metadata definition of its input and output data called the "metainfo" file. While this metadata is most commonly used to construct the content of online pages, another use of this metadata is XAI, which can expose the same underlying service as an XML service. A tool exists that makes this possible. The Schema Editor reads the metainfo file corresponding to a service and generates an XML schema document describing the structure of the service when exposed as an XML service.
If the system does not provide a service that meets your needs, your implementation must define its own page service.
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