parallel processing

Multiple mechanisms promote parallel processing:

At the system level, each user session operates as a process within a Java Virtual Machine on a node. If your system contains multiple nodes or multiple processors and JVMs, separate sessions can operate with true parallelism.
At the business process level, the Split Join, Spinoff, and Split For Each shapes provide a degree of parallel processing. For example, a loan application request flow may split into legal and financial flow executions that can proceed independently until a later join operation requires the two to consolidate.
Within a single user session, connections to external systems may operate in parallel with other operations. For example, an activity that needs to add many rows to an external database can use the RDB-Save method but continue other computations (in a separate Java thread) while the database operation is in progress. The Connect-SOAP and similar Connect- methods also offer this form of parallel processing.