As UI designers, we are confronted with design problems every day. Knowing how best to tackle these issues means investigating, analysing, testing and prototyping solutions until we get the answer that fits our users needs.
UI design is less about making something look attractive (although it helps) and more knowing how to create a valid path from idea to execution, backed with statistics and evidence, for the benefit of our users. Otherwise, you are shooting in the dark and crossing your fingers you hit the bullseye. Thankfully, instead of relying on blind faith, there exist usability heuristics to steadily guide UI designers and keep us on the right track.
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