This study provides a systematic review of how the impact and adaptation of digital assistant technologies (DATs) are defined, operationalized, and studied, synthesizing key domains where DATs generate or are expected to generate value.Based on an analysis of 61 articles published since 2013, it identifies five main areas of impact: productivity and efficiency, business development, resource optimization, quality enhancement, and the promotion of learning and creativity.The review highlights DAT adoption across various disciplines and industries, while revealing limited longitudinal research on benefits and adaptation.Key gaps remain in understanding strategic use and sustained impact.Future research should explore longitudinal comparisons of recently introduced generative AIdriven DATs and their organizational implications.This review contributes to information systems research by structuring current knowledge on DAT adoption and outcomes, and by proposing a research agenda to support deeper exploration of their value and long-term integration.

The average tenure of Chief Information Officers (CIOs) has increased over the past few years.Nevertheless, the average tenure of CIOs is shorter than that of Chief Executive Officers (CEOs).While most studies on tenure and background are based on data from US IT executives, studies on German CIOs are missing.This study analyzes the tenure of German CIOs as a proxy for management effectiveness and how certain factors influence it.An original and unique dataset of 384 IT executives from German companies is examined.The data include the size and industry sector of the companies, educational and professional backgrounds of the CIOs, and the CIOs' reporting lines.Data were analyzed using the chi-square test and Fisher's exact test.The German CIOs had a median tenure of 4.0 years.However, if we examine executives who are currently in office and executives with a completed term of office separately, the median tenure differs.The results also show that German CIOs do not have shorter tenures than German CEOs.When compared with US CIOs, the results depend on the values selected for comparison.In addition, the analysis shows that neither the size and industry sector of the companies nor the educational and professional backgrounds of the CIOs and managers of the CIO reports have a statistically significant influence on the tenure of IT executives.The factors examined in this study can be considered as preconditions for the CIO position.In the future, factors that play a role during tenure should be examined.