Collaboration Pattern Modeling in Support of Norm Specification, Monitoring, and Preservation∗

Collaboration-intensive environments call for technical systems that permit flexible user interactions. Rigid workflows are no suitable collaboration paradigm. As users apply various patterns such as shared artifact, social networks, client/principal, or publish/subscribe for interaction, their cooperative behavior becomes largely determined by norms. In this paper, we make the case for explicit modeling of collaboration patterns as the substrate for specifying, monitoring, and preserving norms. Describing collaboration patterns in the form of human-centric component and connector architecture views provides a means for reasoning on collaboration control, flexibility, and ultimately adaptability. We report on recent work targeting executable collaboration patterns and outline resulting synergies with norms. 1998 ACM Subject Classification D.2.11 Software Architectures