Original intention
Adequate functionality
Aesthetic appeal
Creative design must have an objective, even if the sole reason for existing is to be viewed or otherwise experienced. Although many manufactured objects embody specific functionality, if their configuration is visually engaging then they also may be considered as art.
“Design is an expression of purpose, and if it is good enough it may later be judged as art; design depends largely on constraints and it is a method of action.” – Charles Eames