Compliance with the Four-Eyes-Principle in YAWL Workflows
Channel: YAWL User Group
Date: 26/01/2022

YAWL 4.5 introduces graphical representation of resource constraints. The Four-Eyes-Principle is a compliance topic in business processes. This can be implemented and documented in YAWL.

In YAWL tutorial 17 we have talked about two resource patterns: the four-eyes principle - also known as separation of duties - and retain familiar. This is the link to tutorial 17:

https://www.youtube.com/watch?v=kuRxGjvoEaU

Since YAWL version 4.5 we are able to show these contraints in the graphical workflow diagram. We demonstrate this in this video.

This is Tutorial Number 39. You can find supplementary material on github:
https://github.com/ahense/YAWL
Click on "Code"/Download zip to get the whole package. The material for this tutorial is in the folder that corresponds to the tutorial number.

0:00 - Introduction
0:58 - Retain Familiar
2:23 - Separation of Duties
2:54 - Conclusion