Todd asked:

: Just out of curiosity, what was some of the first software you 
worked
: on 20 years (or close to 20 years) ago?

I was working on electronic point of sale (POS) systems using 
microprocessors. I remember doing things like hand-assembling Z80 
microprocessor code, keying it in on the live customer's computer to 
put a fix through their entire database.

The interaction design was really, really important (although it was 
years before I called it that). There was the human-computer 
interaction and also the human-human interaction (sales person and 
customer) to take into consideration. Mostly, the sales person had to 
be able to use the POS system while still talking to the customer, 
wrapping the stuff, collecting the money and so on. So you really 
couldn't rely on them seeing anything on the screen.

We had an unused key on one system's installed keyboard, and more than 
one sales person asked for a 'customer destruct' button. An example of 
why you don't always do what users want :-)

Which sort of brings me to the coolest thing that I worked on. It was 
a stock-taking system for a leading chain of department stores. It 
used bespoke hand-held computers that uploaded data to bespoke 
microcomputers. The cool parts were (a) performance: cut the sorting 
time from several minutes to seconds and (b) we shipped it 
defect-free. No reported software or hardware defects during the 
entire several-year lifetime of the system - and they did really 
install it and use it in several stores. We achieved an easy-to-use 
interface on the hand-held devices despite the numeric-only keypad.

Cheers

Caroline Jarrett
[EMAIL PROTECTED]
01525 370379

Effortmark Ltd
Usability - Forms - Content 


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