5.3.2 BizTalk orchestration The BizTalk orchestration process is used for creating business workflows. BizTalk orchestration comprises two stages: Specifying the process flow between processing units Specifying the data input and output for each processing unit The internal processing capabilities of the BizTalk orchestration tool are fairly limited. Any required logic must be implemented using external components. BizTalk supports four types of interfaces to external components: COM interface: BizTalk orchestration has a proprietary interface by which it interacts with external COM components. WSC interface: BizTalk orchestration has a proprietary interface by which it interacts with Windows Scripting Components (WSC). Message Queuing interface: BizTalk orchestration is able to read and write messages into the MS Message Queuing (MSMQ) component. BizTalk messaging interface: BizTalk orchestration is able to read and write messages to and from the messaging process of the BizTalk server. In a typical BizTalk orchestration, orchestration receives data through one of its