Design Culture is the study of the interrelationships between design artifacts, in all their manifestations, the work of designers, design production (including marketing, advertising and distribution) and their consumption. (www.designculture.info/) Often design is an undefined concept in many organizations. Following are are some articles that shed light on improving Design Culture.
And how to know if the design culture of an organization is healthy:
Ultimately Design is a growing field; usability breeds efficiency.