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Implementing human workflow with Human Task components

BPEL provides Human Task to achieve this. The BPEL composite service with Human Task(s) will always be an asynchronous service.

WSDL is an XML-based language for describing web services that includes the details of how to consume them.

BPEL provides excellent workflow process capabilities; however, one may find competing arguments from associates that it may not be worth it due to investments required in learning and using BPEL, additional infrastructure requirements, and an additional layer for troubleshooting.

To reuse and integrate applications, one can create web services using XML and HTTP.

Web Service Description Language (WSDL) is an XML-based language for describing web services. The web services can be located and invoked over the Web using WSDL from the service providers.

A WSDL contains an element named <binding> which describes how the message is transmitted on the wire and a <service> element that contains the location of the web service.

The <portType> element in WSDL provides a set of operations for the calling clients.

Port type is very similar to the concept of interfaces in Java.

Java interface specifies methods that a calling client can consume but only by specifying a method of its own.

Similarly, Port type in WSDL specifies the operations available that a calling client can consume but only by specifying an operation of its own.

Partner Link

Partner Link provides references to external services. Partner Link is the door for outside services.