Define 'functionalism' in design.

Functionalism in design is a principle that emphasizes the idea that the form of a product should be directly informed by its intended purpose and functionality. This means that the design process prioritizes how a product will be used, and its effectiveness in meeting user needs. Essentially, functionalism argues that a design should be practical and efficient, thus ensuring that every aspect of the design serves a specific function.

This approach values usability and utility above ornamental aspects, suggesting that the best design is one that successfully performs its intended function. For instance, a chair designed under functionalism would focus on comfort, support, and ergonomics rather than elaborate shapes or excessive decoration. In this way, functionalism aligns design closely with the needs and expectations of end users, enhancing overall user experience.

The other options reflect priorities that diverge from this core principle, such as focusing on aesthetics or trends, or only considering cost efficiency, which can detract from the primary goal of functionality in design.