The core CTM Infrastructure is responsible for executing the transport operations that are common to all Business Object Types. It co-ordinates the overall flow involved in the transport of a Business Object, delegating to other components where necessary. In particular, the CTM infrastructure delegates to the BOMs for the specific Business Object Types that are being transported at points in the flow where Business Object – specific activities must be performed. For example, when an XML document containing the content of a particular Business Object is required, the CTM infrastructure will invoke on the BOM responsible for producing the XML document for the Business Object.