Abstract
Conventional, IT system development organizations have selectively utilized the two techniques: plan-driven method in which requirements are defined and baselined in early phase of the project and agile method which is based on iterative development. Recently, the research articles that reported a hybrid approach that uses plan-driven and agile method together have been on the rise. However, few theoretical studies have investigated the contextual conditions that illustrates a better fit for hybrid approach, called effective area. This research is aimed to provide an analysis model of hybrid approach by evaluating project characteristics and iteration development strategy. Our model and numerical simulations present that a hybrid approach should be fit with wider context of project characteristics than the agile method. By investigating the effective area with multiple parameters, this research would contribute to a growing literature of hybrid approach and a methodology for project manager or project management office to choose hybrid approach appropriately. Furthermore, this paper introduces a discussion of the management methodology in the Scheme-System-Service (3S) model of the Japanese Project and Program management (P2M) studies, where very few studies have suggested the management methodologies of the hybrid approach.
