Andrei said. "We won't truly agree on much of the larger picture until you
change your stance that "interaction" designers need not understand fully
the fundamentals of graphic design as part of the job description. That
means the fundamentals of good typography, color theory and application,
composition, the grid, layout, etc. I'll let you off the hook in bringing up
basic markup and scripting skills for now."
To create compelling interfaces everything you said is TRUE. All those
skills are required.
Where we disagree is that all of them need to be in a single human being and
that their conglomeration is equal to the discipline of interaction design.
I.e. in my industrial design shop I will never be an expert in 3D form,
though the form and even 3D behavior of the objects designed in the studio
are important to the overall interfacing between human and product and well
that product as a mediator between the human and the underlying software
embedded in that 3D form. I'm also not an iconography so the labeling on
keypads is best done by someone else. But I do step in for the layout and
feel of the interface as it impacts HF and cognitive aspects.
I think it is off to say that the practitioner needs to do everything.
Now, back to education. Any interaction design program (bachelor's or
masters) should require the same design fundamentals that any industrial
designer or architect would go through. I'm sure this covers issues of line
and color, but usually doesn't include issues of layout and type (graphic
design). I think your assumption that "graphic design" is always in the
domain of the interaction designer is a false one. But if an IxD knows they
will be working in 2D systems as their primary canvas than sure, they should
learn as much about 2D communication design as is required to communicate
the behavior of the interfaces they are designing. I don't expect them to
master 2D communication design any more than I would expect them to master
3D product design.
Now another way to look at the education piece, is that you could say that
Interaction Design is a specialty on top of 2D or 3D design education like
surgery on top of cardiology or surgery on top of neurology. Its surgery
with a ton of similarities between them regardless of anatomy, but within
specific anatomy areas, it requires very different craft skills.