In 1991, Giles, Coupland, and Coupland expressed the belief that a "more qualitative perspective" would be necessary to get more diverse and clarifying explanations of the behaviors presented within varying contexts. They referred to this as "the applied perspective" that showed accommodation theory as a vital part of day-to-day activity as opposed to solely being a theoretical construct. They sought to "demonstrate how the core concepts and relationships invoked by accommodation theory are available for addressing altogether pragmatic concerns". For Giles, Coupland, and Coupland, these "pragmatic concerns" were extremely varied in nature.