I recently wrote about iteration. Here are 4 design principles you can apply to this:
1. Frame the problem
Make sure that you frame the underlying problem whenever youâ€™re designing a new solution.
2. Explain why
Every time you move to a new design approach explain why. Iteration should mean a new or different approach so write a summary of whatâ€™s changed or what youâ€™re testing.
Weâ€™re testing [this] approach for the first time. Weâ€™ve designed it [this] way [because]
We learned [this] in the last round of user research. We now think that taking [this] approach will mean that [this] will work better
Further reading: Everything is hypothesis-driven design.
3. Donâ€™t compare
Donâ€™t treat iteration as A-B testing. Itâ€™s not about testing multiple designs to see which design people prefer. Focus on one design approach at a time until you understand why this does, or doesnâ€™t work.
4. Donâ€™t go back
Remember that you moved on from a particular design approach for a reason. This should be when you learned when something didnâ€™t work from user research. Itâ€™s rarely good to go back.