The structure of the notation PASS with Christoph Piller

In the latest episode of the New Process Podcast, I talk with Christoph Piller about Subject-Oriented Business Process Management (S-BPM) and its notation PASS. But what does PASS stand for and how is it structured?

At the core of PASS, you’ll find two essential components: the Subject Interaction Diagram (SID) and the Subject Behavior Diagram (SBD):

  1. Subject Interaction Diagram (SID): Imagine this as the blueprint for how different subjects interact with each other within a process. Subjects here represent the key players or components. The SID illustrates the flow of data, information, and messages between these subjects. It’s like mapping out the communication network within a process.
  2. Subject Behavior Diagram (SBD): Once you understand how subjects interact, it’s time to dive deeper into their individual behavior. The SBD outlines the specific steps or actions each subject must take within the process.

→ So the interaction diagram is the bigger picture, and then we have the behavior diagrams for the activities of the subjects.

It’s crucial to note that the SID and SBD are tightly interconnected. The messages exchanged between subjects in the SID should align with the actions depicted in the SBD. This synergy ensures that your BPM model accurately represents the real-world processes it intends to capture.

To get a better understanding and how PASS actually looks like, you can take a look at the document here: What is Subject-Orientation? – a compact introduction


Leave a Reply

Your email address will not be published. Required fields are marked *