An Empirical Investigation of the Perceived Benefits of Agile Methodologies Using an Innovation-Theoretical model

Abstract

There is little doubt that agile software development (ASD) methods have gained widespread acceptance in industry. Despite the attention these methods have received, there is little empirical affirmation of the benefits that accrue to those who use agile methodologies. Grounded in the conceptual foundations of innovation diffusion and agile philosophy of development, the authors' study validates a model to assess the perceived advantage of an iterative approach to software development. Consistent with their predictions, the results suggest that evolutionary development - the cornerstone of agile development – is perceived to be less complex and more compatible with the work habits of developers. Further, the findings support the hitherto unsubstantiated claim that iterative development yields benefits to software developers. However, process flexibility, yet another important characteristic of agile development, had no significant impact on complexity, compatibility, and relative advantage. The implications of the study for academics and practitioners, and directions for future research are discussed.