(education) A method of designing an educational curriculum by setting goals before choosing instructional methods and forms of assessment.

(graphical user interface) A user interface style that that is characterized by the lack of shadows, giving a flat, two-dimensional look

A flaw in the design of something.

the application of a defined set of cognitive, strategic and practical processes to develop design concepts

Alternative form of security by design

Of a transport system (such as a road or railway), the assumed vehicle speed used in calculations when designing the system; typically the fastest speed at which it is deemed safe to use the system.

Design that is accessible to all, regardless of any disability.

The design of movement in animations / video.

plural of design depth

(nautical) The maximum depth at which a submarine is designed to be able to operate safely.