Classes and Dimensions of Task Microprojects: A Case Study on Cargo Handling

This communication aimed at identifying the different classes of microproject, a specific type of situated design performed by users facing an unpredictable situation of great uncertainty. Our hypothesis is that microprojects work differently, depending on the heterogenous actors and the intermediary objects involved. The research presented three case studies carried out on oil extraction platforms in Brazil, focusing on cargo-handling work. Each case presented unique characteristics, which were analyzed and compared in order to understand the situated design process comprehensively. It was observed that the situated design process has different characteristics depending on the level of interdependence of actors involved in solving the problem. The greater the distance between the realms of the actors involved in the design, the greater the need for formal decision procedures and the use of intermediary objects in situated design. Therefore, design must provide material (equipment, zones, routes) and immaterial (competences, intermediary objects) resources for action and for the situated design.