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As an alternative theory, the conceptual framework of Activity theory
is a good way of providing the means of analyzing the actions and
interactions with artifacts within a historical and cultural context –
an approach which was lacking in the existing cognitive theories. In
this context it is a descriptive tool and not a prescriptive one.
Activity Theory can be useful to design interfaces and systems that
take into account the context of use and thus could play an important
role in better user experiences. However it is not easy to find any
such examples where Activity Theory has been used. It offers concepts
and a language to discuss and describe human activity in a manner that
has a real world context though sometimes the distinctions of levels
of activity are not very clear. If designers could understand the
Activity Theory view of human activity i.e. a holistic view of
activity that takes into account context and culture, it would be
beneficial to a better understanding of user needs.
here, by puting the persona/scenario and use case method under the
umbrella of Activity theory, it makes some sense.