Introduction Configuring User-Designer Relations: Interdisciplinary Perspectives Participatory Design: Issues and Approaches in Dynamic Constellations of Use, Design and Research Design As and For Collaboration: Making Sense of and Supporting Practical Action User-Designer Relations in Techology Production: The Development and Evaluation of an Animator Tool to Facilitate User Involvement in the Development of Electronic Health Records Lessons Learnt in Providing Product Designers with User-Participatory Interaction Design Tools A Break From Novelty: Persistence and Effects of Structural Tensions in Designer-User Relations Practicalities of Participation: Stakeholder Involvement in an Electronic Patient Records (EPR) Project Bottom-Up, Top-Down? Connecting Software Architecture Design with Use Global Software and its Provenance: Generification Work in the Production of Organisational Software Packages Concluding Remarks