Published by on 20 Oct 2005
HCI Seminar, Day Eight
A large part of today's seminar was given over to a presentation on "Information Visualization" by Xia Lin on Information Visualization. There was also some initial feedback on the KMT, which I'll summarize again later when more comments come back.
An important point occurred to me during this class, as we discussed relevance feedback, and why users generally don't use it. It's not because it's not effective, but more because they can't be bothered.
I pointed out that it's important for designers to avoid the trap of thinking that this is because users are lazy or stupid. Instead, users are (for the most part) busy and distracted by a dozen different systems with which they have to interact (email, word processing, browsing, etc.). They are actually fairly smart about how to prioritize their time and attention on each system, and they tend to avoid spending more time on one (such as to learn easier/better methods) than absolutely necessary.
The critical bit here is that users don't have time to invest in a given system, so the interface had better draw on their previous experiences to cut the handling time and make more efficient use of the time they do spend learning to use it.
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