Human Performance Technology (HPT) is a rapidly changing field. Evolving from instructional design (ID), HPT shares many of its concepts and applications but encompasses a wider and different domain, including both training and non-training interventions. HPT shares much common ground with the fields of information science (IS) and organizational development (OD). As a field rooted more in application than in research, HPT would benefit by being proactive in its research agenda, rather than react to external forces. Critical for performance effectiveness are: the demand for information on a just-in-time basis; understanding how humans interact with their peers, their organization or group, and their environment; and well-designed training and job aids. Most performance issues would benefit by being viewed from the "whole" open system approach. Maximized performance occurs where HPT, Information Science (IS), and OD theories converge and overlap. At this point, optimal balance is achieved, as the theories of behavioral science, information science, organizational development, open systems, and performance technology are aligned to foster maximized performance. Also included is an HPT job aid that provides a synopsis of concepts from IS and OD, and their potential applications to HPT. (Contains 22 references.) (Author/SWC)