The widespread adoption of agile methodologies raises the question of their continued and effective usage in organizations. An agile usage model consisting of innovation, sociological, technological, team, and organizational factors is used to inform an analysis of post-adoptive usage of agile practices in two major organizations. Analysis of the two case studies found that a methodology champion and top management support were the most important factors influencing continued usage, while

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... tion factors such as compatibility seemed less influential. Both horizontal and vertical usage was found to have significant impact on the effectiveness of agile usage.