Fig. 2 From the chapter - annotations, animation and notes
Fig.3 Another way of looking at Activity Systems 1
<Fig.4 Another way of looking at Activity Systems 3
Engeström , Y (2008) From Teams to Knots. Activity-theoretical studies of Collaboration and Learning at Work. Learning in doing: Social, Cognitive & Computational Perspectives. Cambridge University Press. Series Editor Emeritus. John Seely Brown.
Kuutti, K. (1996) Activity theory as a potential framework for human–computer interaction research. In B. Nardi (ed.) Context and Consciousness: Activity Theory and Human–Computer Interaction. Cambridge, MA: The MIT Press, pp. 17–44.
Seale, J. (2006) E-learning and Disability in Higher Education: Accessibility Research and Practice