This volume presents the proceedings of the 12th International Conference on the Design of Cooperative Systems (COOP 2016). The conference is a venue for multidisciplinary research contributing to the design, assessment and analysis of cooperative systems and their integration in organizations, public venues, and everyday life. COOP emerged from the European tradition of Computer Supported Cooperative Work (CSCW) and Cognitive Ergonomics.

Preface.- Part I: Papers.- Six Issues in Which IS and CSCW Research Communities Differ.- Computational Artifacts: Interactive and Collaborative Computing as an Integral Feature of Work Practice.- The Device is Not Well Designed for Me" On the Use of Activity Trackers in the Workplace?.- You Cannot Grow Viscum on Soil": The "Good" Corporate Social Media also Fail.- From Eco-Feedback to an Organizational Probe, Highlighting Paper Affordances in Administrative Work.- The Many Faces of Computational Artifacts.- Let's Look Outside the Office: Analytical Lens Unpacking Collaborative Relationships in Global Work.- Design of Digital Environments for Operations on Vessels.- Shifting Patterns in Home Care Work - Supporting Collaboration Among Self-Employed Care Actors.- Supporting Informal Carers' Independency through Coordinated Care.- Tinkering around Healthcare Infrastructures. Nursing practices and junction work.- In Due Time: Decision-Making in Architectural Design of Hospitals.- Coordinating, Contributing, Contesting, Representing - HCI Specialists Surviving Distributed Design.- Continuous Interdisciplinary Collaboration of Stakeholders during Process Design.- Local decision making as a design opportunity.- The Life and Death of Design Ideas.- Matters of Concern as Design Opportunities.- Part II: Interactive Experiences.- Audio Satellites - Overhearing Everyday Life.- Gamified Technology Probes for Scaffolding Computational Thinking.- Beatfield: An Open-Meaning Audiovisual Exploration.- FeltRadio: Experiencing and Participating in WiFi Activities Through Sensorial Augmentation.- Listening to the Walkable City.- Appendixes: Workshop Overviews.- A) Symposium on Challenges and Experiences in Designing for an Ageing Society Reflecting on Concepts of Age(ing) and Communication Practices.- B) Contextual Collaboration: Where Automation and People Meet.- C) Infrastructuring Collaboration.- D) Exploring Data-Work in Healthcare:making Sense of Data across Boundaries.