WEBVTT

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If you just focus on the evaluation activity
typically with usability testing,
you're actually doing *nothing* to improve
the usability of your process.
You are still creating bad designs.
And just filtering them out is going to be fantastically wasteful
in terms of the amount of effort.
So, you know, if you think about it as a production line,
we have that manufacturing analogy and talk about screws.
If you decide that your products aren't really good enough

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for whatever reason – they're not consistent
or they break easily or any number of potential problems –
and all you do to *improve* the quality of your product
is to up the quality checking at the end of the assembly line,
then guess what? You just end up with a lot of waste
because you're still producing a large number of faulty screws.
And if you do nothing to improve the actual process in the manufacturing of the screws,
then just tightening the evaluation process

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– raising the hurdle, effectively – is really not the way to go.
Usability evaluations are a *very* important tool.
Usability testing, in particular, is a very important tool in our toolbox.
But really it cannot be the only one.