Figure 5 depicts the general the sequence or concurrency for performance of the activities. Also shown are the swim lanes for organizations participating in the analysis. At this top level, the swimlane list is also very generalized. As we drill into each activity the performer list will increase. Notice that when activities involve 2 or more parties, the activity is reflected on each of the swim lanes. The Trident symbol in each activity denotes the existence of child processes for the activity.
CAItip: The diagramming technique shown here is SysML Action Diagrams, another type of popular swim lane diagram is the Business Process Modeling Notation (BPMN).
CAItip: SysML Activity Diagrams and BPMN Diagrams differ from IDEF0 and IPO diagrams in that the Enablers are the swim lanes and the Inputs and Outputs can connect on any side of the activity block. Constraints are not depicted on these diagrams.