WEBVTT

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If you just focus on the evaluation activity

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typically with usability testing,

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you're actually doing *nothing* to improve

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the usability of your process.

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You are still creating bad designs.

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And just filtering them out is going to be fantastically wasteful

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in terms of the amount of effort.

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So, you know, if you think about it as a production line,

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we have that manufacturing analogy and talk about screws.

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If you decide that your products aren't really good enough

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for whatever reason – they're not consistent

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or they break easily or any number of potential problems –

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and all you do to *improve* the quality of your product

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is to up the quality checking at the end of the assembly line,

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then guess what? 
You just end up with a lot of waste

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because you're still producing a large number of faulty screws.

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And if you do nothing to improve the actual process in the manufacturing of the screws,

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then just tightening the evaluation process

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– raising the hurdle, effectively – is really
not the way to go.

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Usability evaluations are a *very* important tool.

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Usability testing, in particular, is a very important tool in our toolbox.

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But really it cannot be the only one.