The PSL is one of several libraries that are introduced with SAP® Solution Manager 7.2.
The PSL contains process step originals (PSL items) and attached documents, test cases, etc. Each business process step used in a branch must refer to a PSL item. Multiple business process steps can reference the same PSL item. In ARIS, the PSL is downloaded into the Process Step Library database group of each branch. A relation is created for each business process step and its corresponding process step original.
Reuse of process step originals in business processes
Basic process steps can be defined as process step originals. Process step originals have individual names and descriptions, assigned executables, related roles, and specific documentation. You can reuse these process step originals in other processes as variants. Therefore, in ARIS Designer you create a new business process step and select the process step original on which the new business process step is to be based. A best practice is to use a standardized process framework to structure the PSL.
Example
In process A you use the process step original as defined. You simply map the process step original in the PSL to the business process step. In process B the business process step is slightly different. For example, an additional role and a document are required. Hence, at your business process step you add the new role, change the description and add a new document. It is still based on the same process step original, but has different roles and documents assigned and an individual description. When you select the business process step, you will see the properties of the process step original together with the properties of the business process step.
In Solution Manager 7.1 projects, you could connect several executables to one process step. SAP best practice for Solution Manager 7.2 recommends the use of a one-to-one connection between PSL steps and executables.