Which of the following is not a well-established design principle in operations management? a. Design should incorporate variation or variability for services, eg. bank accounts b. Design should rely on reverse engineering for reliability assurance c. A design principle that should be integrated is user-friendliness d. Utilizing a single unifying theme such as innovation.

1. Which of the following is not a well-established design principle in operations management? a.
Design should incorporate variation or variability for services, eg. bank accounts b. Design
should rely on reverse engineering for reliability assurance c. A design principle that should be
integrated is user-friendliness d. Utilizing a single unifying theme such as innovation