I am a software tester who works on a newly developing software product. Sometimes I feel the GUIs are not very user friendly but could not justify as I do not have enough facts/knowledge on GUI standards and usability principles (ie:how a good menu should look like etc) .
What sort of a knowledge you suggest that I should gain? ie:Should it be on usability testing? Usability design? Usability analysis? or anything else?
What kind of formal qualifications (ie:certification exams) I can gain?
Kind regards, Saku