In this paper 1 we describe the design, implementation and evaluation of a software framework that supports the development of mobile, context-aware trails-based applications. A t...
To compare the outcomes of participatory and user-centered contextual design, case study methods and the Activity Checklist derived from Activity Theory are used to analyze two sy...
The development of complex systems invariably involves many stakeholders who have different perspectives on the problem they are addressing, the system being developed, and the pr...
The class hierarchy is an important aspect of object-oriented software development. Design and maintenance of such a hierarchy is a difficult task that is often accomplished witho...
er than abstracting human behavior as work processes or tasks--functional idealizations of the work to be accomplished--we model people's activities comprehensively and chrono...