Guy Boy

Managing Director
guy.boy@eurisco.org

Guy Boy

Philosopical Objectives: I am interested in the emergence of new practices in the use of current technology. My personal research agenda is directed by the search of artifacts properties. Artifacts are direct concrete representations of human intelligence. Artifacts involve the use of human cognitive functions. Software artifacts currently evolve towards software agents that have cognitive functions. Thus, I am interested in cognitive functions that make sense in the communication, cooperation, coordination, delegation and other interaction processes. I believe that taking human factors into account in the design and development of artifacts is seldom possible when the organization is not prepared to accept humanization of technology. Thus, social and organizational aspects are crucial to carry out research in human factors and cognitive engineering. Cognitive engineering denotes an integrated approach and a consistent set of methods and techniques used in the analysis, design and evaluation of human-machine systems.

Why has cognitive engineering become so important? One of the best explanations I can provide is that the overcomputerization of systems has produced a clear shift from energy-based to information-based human-machine interaction. For instance, force feedback (energy-based feedback) does not provide the same information as a red light on a computer screen (information-based feedback). The level of interpretation is quite different. While in the past people could assess directly a force or a pressure, today they need to reconstruct these physical concepts from computer-generated information usually available through the central vision channel. Work is consequently more cognitive. Furthermore, several cognitive tasks have been delegated to the machine, and users have progressively become managers of artificial agents. They need to learn new skills such as trust, supervisory control, evaluation, and to coordinate activities of a new type. The emergence of artificial agents has raised a novel socio-cognitive issue that is impossible to address using traditional human-factors methods and techniques.

Deliberately, my focus is human-centered design (HCD). Working in the fields of cognitive sciences and engineering as well as in the aerospace domain, I found a real need for the development of an approach and a methodology that would take into account cognitive functions in the design of human-machine interaction artifacts, especially for complex dynamic systems. Cognitive functions are defined not only from a local ergonomics viewpoint, but also from management, organizational memory and human-centered design viewpoints. Although, I would advise to start from global to local, the proposed design/evaluation approach is iterative and is based on the use of the user-task-artifact triangle. Global ergonomics expends the triangle to a pyramid by introducing a fourth concept: environment. Environment introduces three additional issues:

  • the designed artifact emerges in the environment, and the environment evolves after the integration of the artifact;
  • the task requires the organization of new jobs, and the environment sends back new roles;
  • users using the artifact to perform the task in the environment determine social issues.

One of my favorite topics is the evolution of socio-technological systems, in the aerospace domain in particular. The notion of working tool is central. I try to investigate technology not only from an engineering viewpoint, but also from a use viewpoint. Technology is an entity to be discovered. For example, I am interested in the role of a specific instrument in a specific context for a specific person or group of persons. The study of emergence and evolution brings questions related to the organizational memory and the processes that it involves. I am also interested in other phenomena such as latency, forgetting, obsolescence, affordance and inertia. This is to improve practical topics such as traceability and participatory design.