Is there a formal documentation/spec for the attributes that activiti has put into BPMN 2.0. For the attribute activiti:class and the elements: activiti:field activiti:string ??
<serviceTask id="servicetask1" name="CalculatePi" activiti:class="org.activiti.delegates.PiCalculator">
<extensionElements>
<activiti:field name="accuracy">
<activiti:string>20</activiti:string>
</activiti:field>
</extensionElements>
</serviceTask>
Thanks