RE: [agile-usability] Re: Designing for incremental delivery vs. big-bang delivery
- classic... i have seen UI design lovers take a green screen data entry app (like for logging in order forms, or tax forms, etc.) and make it into a beautiful client-server style app.only one problem.users get paid by the amount of data they enter.you gots to always pay attention to the user's needs, quite simply :=)
-- jon-----Original Message-----
From: acockburn@... [mailto:acockburn@...]
Sent: Friday, July 30, 2004 6:52 PM
Subject: [agile-usability] Re: Designing for incremental delivery vs. big-bang deliveryAlistair,would you mind telling a story I've heard you tell before about an
application written using use cases. It was built, things seem to be
fine until you discovered the users were often interrupted and the
work needed to be set aside. You guys had big UI impact to support
that. I think you know the story. That's the sort of environmental
condition Charlie is talking about. It'll be a better story if you
-Jeff--->Well, it was actually a little different from that (the only story I can think ofalong those lines...)It was a client-server app, second delivery cycle (3-month delivery cycles), and it was taking, at that stage, around 5 seconds round trip to the database. We had the rule that we had to show the app to a real, expert user twice before delivering, so we did it at about the 6 and 9 week marks.This particular tried the thing out and said, "Will it always take that long?"We said, "Well, it will be tuned to be a bit faster, but basically, yes, why?"She said, "Well, in this case, I'm only typing in lists of damaged goods we donateto charity, so it's a heads-down typing job --- I never look up, just type in from pages ofprintout. If I have to wait 5 seconds for each one, I'll never get done."We, shocked, asked, "What about typing errors?"She said, "It only is used for tax-deduction purposes, so if there are a few typos, it reallydoesn't matter. What matters is that I can type heads-down."We were, of course, shattered by this news, and had to redesign that section of the appso that no trips to the server entered into her typing loop.that's the story I have --- Alistair-------------------------------------------------------------------------------------
--- In email@example.com, "Charlie Trainor"
The reason I argue for going to the user rather than inviting them
that in "real life", people have interruptions, noisy surroundings,
colleagues asking questions, other applications running on their
and so forth. If (and this is a big if) you can do your usability
in such a real environment, you are better off. This is true even at
stages of design, when you are checking out basic metaphors and
structuring the product. Many products do fine under ideal
the user can focus, but don't provide the user enough guidance and
(and graceful handling of strange user behaviour) to support
--- End forwarded message ---
- Anthony Williams wrote:
> I'm sure there's a variant on PNG that can animateThanks; I made a note of it. But InternetExploiter and
> ..... checks ImageMagick
> docs ..... MNG.
> IIRC, Mozilla has optional MNG support.
Windows XP don't support MNG, so I can't use MNG
without introducing new systems.
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