11. Prioritising tests
At this point we’ve identified the areas that will help improve your mobile experience. It’s now time to figure out where you should begin testing. Using a framework to prioritise fixes is a great way to see where the biggest wins for minimum effort are.
The PIE prioritisation framework
Chris Goward’s PIE framework identifies three important factors for prioritising tests:
How big of an uplift do we estimate that the change will bring?
How much traffic does the page get and are you investing a lot to get those visitors?
How simple is it to implement the fix?
Start by listing the tests you need to carry out on your mobile site.
Assign a score for the potential increase of conversions the page will give.
Assign a score for the value of the page’s traffic for your business and how important it is for ROI.
Finally, talk to your developers and ask them to assign a score for how easy it will be to design and implement the fix.
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