Design of a safe computersupported cooperative environment in radiotherapy: exploratory identification of cooperation strategies Motivation  This research deals with the identification of collective production of a safe radiotherapy treatment and its potential assistance through computersupported environments. It takes place at the beginning of a four years design project involving software companies and and scientific and clinical institutions. Research approach  This work presents an exploratory analysis of cooperation between the four professionals involved in the production of radiotherapy treatment. Our general research objective is to investigate how to support managed safety in the design of a computersupported cooperative environment. Uses and functions of cooperative tools have been outlined through observations and the think aloud technique. FindingsDesign  We identify three types of cooperation tools (computerbased tools, including an existing workflow, unformal verbal exchanges, and the patient body) involved in the production of a safe treatment. Their main functions are : to produce shareable data between professionals, to share the progress in the construction of a treatment and to share procedures and work practices. Research limitationsImplications  This paper aims at contributing to the articulation of two research approaches: CSCW and safety in healthcare. OriginalityValue  Our study reveals informal strategies that participate to a managed healthcare safety performed by professionals. Take away message  Our work may contribute to transform the initial technocentric approach of the design project into a more anthropocentric design project and flexible CSCW tool.

Quality Risks in the Data Exchange Process for Collaborative CPPS Engineering The realization of a cyberphysical production system (CPPS) requires suitable methods and tools for the exchange and integration of engineering data between collaborating disciplines. Unfortunately, the description languages used in a CPPS Engineering (CPPSE) organization to describe disciplinespecific views are not necessarily well suited for highquality data exchange between workgroups. In this paper, we identify technical debt and risks regarding CPPSE description languages for data exchange using the VDI 3695 guideline as best practice. We report on effects and likely causes of the quality risks identified in a case study at a large CPPSE company. Based on data from workshops and semistructured interviews with 28 domain experts from 12 workgroups, we propose a preliminary model relating causes and effects as foundation for analyzing and managing risks in the CPPSE data exchange process.