Semantically annotation of BPMN process model

• To validate our approach, we have implemented three plug-ins of Signavio, one of the best open source tool based for BPMN 2.0 modeling. The screen-shot of our application is shown below.
• Area 1 shows the three plug-ins. The first plug-in is Conception (C) that takes as input a selected activity's name, concepts from the ontologies (WSML) stored in a repository using the semantic matching to select the most suitable concept to annotate the selected activity. An example is shown in Area 2.
• The second and the third plug-ins, Static and Dynamic Service Binding (S and D) takes as input a text annotation from the selected task, description of semantic annotated services (SA-WSDL) stored in a repository using also the semantic matching to select the most suitable service to bind with the selected activity.
• Area 3 shows the service binding information of an activity. Static Service Binding allows an activity to bind with only one service. On the other hand, Dynamic Service Binding allows an activity to bind with a list services ranked by matching value. In case of the service invocation failure during the process execution, Dynamic Service Binding allows an activity to invoke the following service based on the matching value.
• By using our plug-ins, the results from Signavio as BPMN 2.0 (XML) are semantically enhance to be capable of deploying in BPM engine. We exemplify parts of the semantically enhanced BPMN 2.0 as follows:

  	...
  	<import importType="http://schemas.xmlsoap.org/wsdl/" location="http://localhost/WS/Generic?wsdl" namespace="http://localhost/WS/Generic"/">
  	...
  	<serviceTask id="1" implementation="##WebService" name="get service trouble ticket" operationRef="invokeOperationOperation" ...>
  	 <dataInputAssociation>
  		<sourceRef>matchingoperations1</sourceRef>
  		<targetRef>matchingoperations</targetRef>
  	 </dataInputAssociation>
  	 <dataInputAssociation>
  		<sourceRef>inputParam1</sourceRef>
  		<targetRef>inputParam</targetRef>
  	 </dataInputAssociation>
  	 <dataInputAssociation>
  		<sourceRef>inputValue1</sourceRef>
  		<targetRef>inputValue</targetRef>
  	 </dataInputAssociation>
  	 <dataOutputAssociation>
  		<sourceRef>invokeOperationReturn</sourceRef>
  		<targetRef>response1</targetRef>
  	 </dataOutputAssociation>
  	</serviceTask>
  	...
  	<itemDefinition id="matchingoperations" .../">
  	<itemDefinition id="inputParam" .../">
  	<itemDefinition id="inputValue" .../">
  	<itemDefinition id="invokeOperationReturn" .../">
  	...SS
  	<itemDefinition id="inputParam1" .../">
  	<itemDefinition id="inputValue1" .../">
  	<itemDefinition id="matchingoperations1" .../">
  	<itemDefinition id="response1" .../">
  	<itemDefinition id="invokeOperationInItem" 
  	 structureRef="GenericNS:invokeOperation"/">
  	...
  	<interface implementationRef="GenericNS:Generic" name="invokeOperationInterface"> <operation id="invokeOperationOperation" implementationRef="GenericNS:invokeOperation" name="invokeOperation">
  		 <inMessageRef>invokeOperationRequestMessage</inMessageRef>
  		 <outMessageRef>invokeOperationResponseMessage</outMessageRef>
  	  </operation>
  	</interface>
  	<message id="invokeOperationRequestMessage" itemRef="invokeOperationInItem"/">
  	<message id="invokeOperationResponseMessage" itemRef="invokeOperationOutItem"/">
  	...
  	

• The demonstration of Semantically enhanced BPMN process model:

Semantically Enhanced BPMN Execution

• We also validate our approach by deploying and executing semantically enhanced BPMN process model on Activiti BPM engine. Concretely, we deploy several mock-up SOAP Web services to be binded and invoked by automated activity. Then, we create and design a business process model in Signavio based on the real use-case in a telecommunication company. We semantically enhance the process using our plug-ins. Then, we deploy this process model on Activiti as shown in figure below.
• In the case that the first service has an invocation's failure, then the second service is invoked instead.
• This result shows that our process model is capable of deploying on Activiti BPM engine. Furthermore, automated activities in the process efficiency invoke Web services regardless of static or dynamic service binding.
• The demonstration of Semantically Enhanced BPMN Execution:
• The demonstration of Porcess conformance