Firms are adopting big data analytics (BDA) systems to obtain and sustain their competitive advantage. However, BDA’s real value cannot be realized unless its key executors show commitment to its implementation. Given the critical role of data analysts in this organizational change process, this research-in-progress study investigates the cognitive mechanisms through which data analysts’ commitment to BDA implementation is shaped and affected. The study, specifically, draws on the premises of the transactional theory of stress and the literature on the commitment to organizational change and answers to this question that how uncertainties perceived by data analysts during this technological transition impact their commitment to the implementation of BDA through their threat, challenge and control appraisals. Accordingly, a research model is proposed to be tested following an experimental methodology. Finally, the potential contributions and recommendations to theory and practice are also discussed.