This paper presents an overview of a systems approach being implemented within the Kaiser-Permanente Medical Care Program (KPMCP) for the planning of large-scale, integrated health care facilities. This approach was motivated by the increasing change and complexity of factors, both external and internal to KPMCP, that now require more systematic treatment and that before were handled by more intuitive approaches. Among others, these factors include dealing with increasing regulation from government agencies and accommodating the active participation of knowledgeable personnel to ensure the continuation of a progressive and innovative system. Described within, along with more general issues, are various computer models, based upon Kaiser concepts and data that have been developed to facilitate the effective allocation of resources.