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Collective or social memories are not just a way for accumulating and preserving but also for sharing and developing knowledge. Indeed, as knowledge is made explicit and elaborated by a community, it enriches the local culture and the current practices, becoming a basis for communication and learning. This paper addresses the concept of 'social memory' in a specific 'community of practice': teachers and students of primary schools. The work is developed within HIPS1 (Hyper Interaction within Physical Space), a three-year (1997-2000) research project funded by the European Commission within the I[sup 3] (I-Cube) Programme. HIPS is a hand-held location-aware tourist guide that delivers information related to the surrounding space mainly reacting to the physical movements of visitors (Benelli et al. 1999). The guide is designed to minimize the boundary between the physical space and the related information through a number of situated and contextual-aware interaction mechanisms. In the paper we present a specific application of HIPS as tool to support the creation of a social memory. First, we illustrate the theoretical framework, the cultural psychology (Vygotsky 1978), which we adopted to design the tool as an external aid for social memory. Afterwards we describe the user study and the design process that resulted in the development of an early prototype. The conclusions are a reflection about the use of new technology to open new learning opportunities for students. [ABSTRACT FROM AUTHOR]

This paper describes the application of MUSE, a human factors structured design method, to the design of systems supporting the work of air traffic controllers at European airport control towers. The paper illustrates the derivation of a generalized task model starting from the analyses performed at four airports and the construction of the composite task model of the future system. Other important concerns of the work are the harmonization of the different tools in the airport control tower and the assessment of the impact of these tools on the human operators. The potentialities and limitations of applying the method are discussed in particular with respect to the complexity of the domain and the nonstandard features of the air traffic control as a MUSE application. Indeed, air traffic management is widely acknowledged as a complex domain to design for, and the documented application of human factors structured methods to design are all referred to the modelling of worksystems (as opposed to working positions or workstations) with a single operator. In the present application one has multiple operators and multiple design goals (design, harmonization, assessment). The work presented is a contribution to the extension and better definition of structured methods and their applicability to the analysis of complex domains. [ABSTRACT FROM AUTHOR]