Trained in the two precursors to modern product design practice (graphic design and human-computer interaction) I see design as a framework for decision-making in all aspects of software product development.
I'm a big proponent of choosing methods to fit your goals rather than the other way around.
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“Visuals are a core part of the design process, but they can also conceal incomplete thinking. Without establishing conceptual fidelity through tools like the primary user benefit, designers risk creating negative value for their teams....”