Software process improvement initiatives such as metrics programs have a high failure rate during their assimilation in a software organization. Social and individual issues are some of the factors affecting a program’s acceptance, and lack of attention to them can have adverse consequences. Social psychology includes study of such acceptance issues in the adoption of technology in the workplace. Although metrics implementations are often more intrusive and their benefits are indirect compared to workplace technology in general, both are introduced for similar reasons and induce organizational change. Therefore, we apply technology adoption and acceptance concepts to metrics program implementation to develop a model that takes as input indicators of organizational culture, developer perceptions, and the context of the metrics program. Our model, called the Metrics Acceptance Model (MAM), relates these predictive indicators to the likelihood of metrics program acceptance and to areas...