An organization unit can represent a company, a system, a service, an organization, a user or a role, which is responsible for a process. It can also be a business partner who uses high level processes.
Organization units can be created in models targeting any language, and are commonly used as the basis for other objects in languages other than Analysis.
In a business process diagram, the organization unit is displayed as
a swimlane and allows you to assign responsibilities within your system. In this
example, the Warehouse organization unit is responsible for checking the stock and
managing the shipping of goods, and the Call Center organization unit is responsible
for calling back customers:
In a BPEL4WS or WS-BPEL top-level diagram, the organization unit is displayed as an
actor and allows you to identify the external partners who interact with your
system. In this example, the Buyer organization unit interacts with the Order
process:
In a data flow diagram, the organization unit is displayed as a box and allows you to identify external entities that send or receive data from the system.