The following terms are defined in Petals ESB context and must be used in all technical and functional documents.

|| Terms \\ || Definition || Variable names in source code \\ ||
| * Process | Set of steps assembled to define a processing. \\ | |
| * Process identifier | Identifier associated to a process. \\ | * processId |
| * Process instance | When a process is invoked, a process instance is created representing the process execution. \\ | |
| * Process instance identifier | It is a GUUID (Global Universal Unique Identifier) identifying *one and only one process instance*. \\
It can be initialized from outside client when entering in Petals ESB and transmitted to application resources to retrieve all steps of a global business process. Inside Petals ESB, this identifier is automatically transmitted step by step. \\ | * processInstanceId
* -correlationId-
* -processExecutionId-
* -processRequestId-

* -branchId- |
| * Component name | A *component name* is an unique name assigned to the component instance at installation time. \\ | * componentName
* -loggerName- |
| * Trace code | A code identifying uniquely a trace type in log. For example, all service invocations are logged on the consumer side with the same code. \\ | * traceCode |

{petalslink:type=TODO Add terms}* Petals topology,
* Petals node (= \[JBI\] container),
* Petals network (= Petals topology instance),
* Petals domain,
* Petals sub-domain{petalslink}

\\
{info:title=Global terms utilization}
This previous terms are not only used for BPEL
{info}This identifier is formed as: <main-loop-id>\[-<sub-loop-id>\] where:
* <main-loop-id> is the process loop identifier of the process first step. It is defined as '0',
* <sub-loop-id> is defined as: <iteration-number>\[-<sub-loop-id>\] where <iteration number> is the loop iteration number starting to 0.