Inside Dynamics AX 4.0: XML Document Integration

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The Application Integration Framework (AIF) has replaced Commerce Gateway in Dynamics AX 4.0 as the conduit for exchanging electronic business documents. To provide broad support for business-to-business collaboration scenarios, the AIF enables interaction with application integration platforms such as Microsoft BizTalk Server 2006. It also enables enterprise application integration scenarios via a variety of communication channels, including Microsoft Message Queuing (MSMQ) and Web services.

The AIF depends on the XML document framework to provide an XML document interface to Dynamics AX. The XML document framework consists of two X++ class hierarchies:

• Dynamics AX document classes (referred to as Axd classes) present data as electronic documents. They protect the user from the complexity of the underlying table structures and associated business logic and elevate error handling from individual database tables and fields to the document level. In addition, the Axd classes provide methods for serializing instances to XML and deserializing document class instances from XML while performing value mapping and data filtering. The Axd classes can also automatically generate an XML schema that describes the equivalent XML document based on the associated query in the Application Object Tree (AOT).
• Ax classes have a 1:1 relationship with the database tables in Dynamics AX and protect the user from the underlying table-specific business logic and the complexities of default settings. The Ax classes eliminate the need for the calling application to set database fields in a specific order and replicate any table-specific business logic. For this reason, the Axd classes always use Ax classes to manipulate the underlying Dynamics AX database tables.

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