In an attempt to discover any real difference between ACD and UCD,
here's a concrete question:
Are there different methods/deliverables that we might label more of
an ACD practice or a UCD practice?
To determine this, we should look at what the primary object of the
method is. That is, what is being communicated or diagrammed in the
method?
Is it the User (or types of users) or is it the Activity (or set of
tasks)?
In the previous thread Dan Saffer started doing this.
Personas (Cooper, Adlin, etc) have a User as the primary object
Indi Young's Mental Models have activities as the primary object
I would also add three more that seem focused on the activity:
Hackos/Redish task analysis
Adlin's Reality Maps (ch. 10)
Zaki-Warfel's task analysis grid
Now, I understand that most of us do task-related methods and call it
UCD. That's fine. We can keep calling it UCD and we'll all get along
just fine. I don't really care what we call it...I'm just focused on
what we're doing...
So, what methods focus on the User and what methods focus on the
Activity?
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