Opening Keynote -- Groups, Group Cognition and Groupware -- Groupware Development -- A Framework for Prototyping Collaborative Virtual Environments -- Adaptive Distribution Support for Co-authored Documents on the Web -- Agilo: A Highly Flexible Groupware Framework -- Autonomous and Self-sufficient Groups: Ad Hoc Collaborative Environments -- Empowering End-Users: A Pattern-Centered Groupware Development Process -- Integrating Synchronous and Asynchronous Interactions in Groupware Applications -- Collaborative Applications -- An Architectural Model for Component Groupware -- An Architecture for Collaborative Geomodeling -- Remote Control Point Motion Prediction in Internet-Based Real-Time Collaborative Graphics Editing Systems -- Synchronization Contexts as a Means to Support Collaborative Modeling -- Tailoring Infrastructures: Supporting Cooperative Work with Configurable Email Filters -- Workflow Management -- A Collaborative Framework for Unexpected Exception Handling -- A Workflow Mining Method Through Model Rewriting -- Design of an Object-Oriented Workflow Management System with Reusable and Fine-Grained Components -- Modeling the Behavior of Dispatching Rules in Workflow Systems: A Statistical Approach -- Knowledge Management -- Collective Knowledge Recall: Benefits and Drawbacks -- Developing Shared Context Within Group Stories -- Patterns of Collaboration and Non-collaboration Among Physicians -- Shared Knowledge: The Result of Negotiation in Non-hierarchical Environments -- Computer Supported Collaborative Learning -- A Mediation Model for Large Group Collaborative Teaching -- Analyzing the Organization of Collaborative Math Problem-Solving in Online Chats Using Statistics and Conversation Analysis -- Collaboration for Learning Language Skills -- Group Decision Support Systems -- Collaborative IS Decision-Making: Analyzing Decision Process Characteristics and Technology Support -- Software Requirements Negotiation Using the Software Quality Function Deployment -- The Design and Field Evaluation of a Repeatable Collaborative Software Code Inspection Process -- Mobile Collaborative Work -- Handheld-Based Electronic Meeting Support -- Sharing Information Resources in Mobile Ad-hoc Networks -- Work Modeling in CSCW -- Towards a Model of Cooperation -- Towards an Ontology for Context Representation in Groupware.

This book constitutes the refereed proceedings of the 11th International Workshop on Groupware, CRIWG 2005, held in Porto de Galinhas, Brazil in September 2005. The 16 revised full papers and 13 revised short papers presented together with a keynote paper were carefully reviewed and selected from 67 submissions. The papers are organized in topical sections on groupware development, collaborative applications, workflow management, knowledge management, computer supported collaborative learning, group decision support systems, mobile collaborative work, and work modeling in CSCW.