YAWL: Work Items Visibility in Action (Live Demo)

This video explores the concept of configurable unallocated work item visibility as implemented in the Yet Another Workflow Language (YAWL). It explains how user privileges and roles determine which unallocated work items are visible to participants during workflow execution. This mechanism allows organizations to control task visibility in a fine-grained manner, based on responsibilities and organizational roles.

Using illustrative examples with roles such as “cleaner” and “lawyer,” the video demonstrates how different users perceive the set of available work items. In particular, it shows how a manager equipped with specific privileges can access a broader overview of unallocated tasks, while regular workers are restricted to seeing only those tasks relevant to their role.

A detailed walkthrough of the YAWL runtime interface highlights how configurable visibility settings are defined and enforced. The example illustrates how these settings support effective workflow management by balancing transparency for supervisory roles with focus and simplicity for operational users.

The video is part of the basic YAWL tutorial series, which provides an introduction to the installation, configuration, and use of the YAWL Workflow Management System:
https://www.youtube.com/playlist?list=PL4BZgFsmRzfSEP_8nCqHt3N2X_XzRNen2

This video corresponds to Video #90 of the YAWL Series. Supplementary material for this tutorial and related videos is available on GitHub:
https://github.com/ahense/YAWL

The complete set of materials can be downloaded via “Code → Download ZIP”. The resources relevant to this tutorial are located in the folder corresponding to the tutorial number.

From a conceptual perspective, the video relates to the Configurable Unallocated Work Item Visibility pattern, as documented on the Workflow Patterns website:
http://www.workflowpatterns.com/patterns/resource

Additional theoretical background is provided in the book Workflow Patterns, published by MIT Press:
https://mitpress.mit.edu/9780262029827/workflow-patterns