Engineering sketches and drawings are the building blocks of technological design and production. These visual representations act as the means for organizing the design to production process, hence serving as a "social glue" both between individuals and between groups. The author discusses two main capacities such visual representations serve in facilitating distributed cognition in team design work As conscription devices, they enlist and organize group participation. As boundary objects, they facilitate the reading of alternative meanings by various groups involved in (...) the design process. The introduction of computer-aided design into this visual culture of engineering restructures relationships between workers in ways that can hamper the flexibility necessary for these crucial capacities to take place. The data are drawn from a study of the daily practices of engineers engaged in redesigning a turbine engine package. The method is participant observation. (shrink)

ArgumentSpace projects represent, after World War II, the archetype of large-scale organization of scientific practices that are flexible, temporary, and oriented towards specific goals. A new form of activity, the project, emerged through the management of technical means, allocation of skills, and coordination of various players. Project management emerged as the synthesis of a set of social practices designed to subordinate as well as synchronize the initiatives of researchers, engineers, and technicians who had temporarily joined forces. This article presents the (...) genesis and deployment of the Franco-Soviet space program ARCAD 3 whose purpose was to study the magnetosphere with a satellite. This study is situated at the junction of three historiographical dimensions: scientific writings, links between action and graphic forms, and Big Science. The diagrams, organization charts and schedules produced by the French space agency throughout the entire project form the documentary substrata of this analysis. These graphic management tools define the role of each player, designate fields of competence, and specify the temporality of actions. A self-monitoring system as well as surveillance instrument, diagrams, organization charts and schedules are linked to form a certain vision of authority along the lines of the “neoliberal governmentality” defined by Michel Foucault. By defining in advance and in writing all the possible (or impossible) relationships, the chronological order of activities as well as the actions to be performed, graphic project management tools contribute to the transfer of coercive panoptic mechanisms towards a minimal organization of relationships between individuals. (shrink)