Yes and no. The foundations of design are aesthetics and critical thinking. Every design has technical and functional specification. If one designs a car, one

Yes and no. The foundations of design are aesthetics and critical thinking. Every design has technical and functional specification. If one designs a car, one must know what is "packaging". If one designs for print, one must know the printing process. If one designs for UI, one must know the medium inside out. There is no generalisation. I can argue that todays UI designers have lack of design foundation, color theory, composition, typography and are producing colourful, non-functional garbage. Example: The lack of contrast in mass adopted UI trends is not only aesthetically wrong but actually is an accessibility problem.