This paper focuses on the common features of Guided Discovery Architecture (GDA) online programs. It is also about developing a descriptive cost-benefit analysis of online program of GDA. It discusses how the features of GDA instruction differ from those of conventional distance education (DE) courses in terms of not only cost categories associated with online program features but also benefits associated with developing and implementing online programs. This paper addresses on definitions and measurements of expenditures and benefits of development and implementation of online programs.