Human resource development (HRD) has long been considered a field with an interdisciplinary foundation. Unfortunately there has never been a consensus on the composition of the seminal disciplinary base of HRD. A description of the concept of an applied discipline is presented, and HRD, as represented by its academic association, the Academy of Human Resource Development, is compared to a set of criteria of a discipline that is set forth in the scholarly literature. A seminal foundation for a curriculum of the HRD discipline is presented around the framework of people, learning, and organizations.Human resource development (HRD) has long been considered a field with an interdisciplinary foundation. Galagan (1986), then editor of Training and Development, referred to this issue in an editorial when she described the field as an omnivorous discipline, incorporating over the years almost any theory or practice that would serve the goal of learning in the context of work. Like an amoeba, it has ingested and taken nourishment from whatever it deemed expedient in the social and behavioral sciences, in learning theory, and business. Indeed, it is a field that has borrowed heavily over the years from other disciplines, and will continue to do so in order to apply the best of approaches to the learning needs of the workplace [p. 4]. Jacobs (1990) stated that