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Over on the IXDA mailing list, Jared Spool opened a discussion on Where that ACD thing fits in which he wonders what Activity-Centred Design (ACD) might be and where it fits into other design approaches. In the previous discussion of ACD versus UCD on this list, the focus has been defined simply: Someone practicing ACD focuses on the activities of the design, where someone practicing UCD focuses on the users. Some have said that ACD minimizes the need of doing personas (a ‘user-centered’ activity) and just looks at the underlying activities that are obvious to the design result. If one asserts that UCD is a collection of activities that go beyond ACD , looking at the goals, needs, and context of the user, beyond just that of the underlying activities, then I would say that ACD is just a lazy man’s UCD . In this context, Jared considers laziness to be a good thing, applauding ‘anyone who is creatively lazy, looking for ways reduce effort while producing more.’ Jared’s points reflect a conversation we occasionally have here at Clearleft . We say we do User-Centred Design (UCD), but ask ourselves if we really do ACD ? … Read the rest here