Which of the following is NOT considered a constraint in design?

In design, constraints are factors that limit the options available to engineers during the design process. These constraints can include materials, funding, and spatial considerations, all of which directly affect how a design can be executed.

Device performance, while an important aspect to consider during the design process, is generally viewed as a requirement rather than a constraint. It represents the expectations set for how well the device should function, such as speed, reliability, and efficiency. Thus, it is focused on the goals of the design rather than the limitations that might hinder achieving those goals. In contrast, materials, funding, and space impose specific boundaries that the design must operate within, making them true constraints that the engineering team must navigate.