Learning is becoming increasingly digital not only in the academic context, but also in the corporate context. Research on how to adapt e-learning courses to the learner´s individual cognitive style is gaining momentum. However, especially in the corporate context, some more basic qustions appear to be still unanswered such as whether differences in cognitive style explain differences in corporate learners´ usage behavior. Based on data including both users and non-users of a globally operating professional service firm, I identify differences in behavior and attempt to explain them with cognitive style theory. The findings include distinct pattern in usage behavior, which cognitive style surprisingly does not explain. Implications for future research and practice are discussed.
Cloud Computing has been one of the most vibrant topics in the last years. Especially Platform as a Service (PaaS) is said to be a game changer for future application development. Taking away most of the configuration work, it pledges to foster rapid application development which seems even more important in a world of complex scalable distributed systems. Whereas Infrastructure as a Service (IaaS) is in the process of consolidation and standardization, the PaaS market is largely fragmented offering varying ecosystem capabilities. In this situation, application portability is a major concern for companies utilizing PaaS to avoid vendor lock-in and to retain the ability for future strategical decisions. To categorize portability problems of PaaS, we define a model of current PaaS offerings and identify different portability perspectives. Starting from the model, we derive a standardized profile with a common set of capabilities that can be found among PaaS providers and matched with one another to check application portability based on ecosystem capabilities. We validate our findings with a comprehensive data set of 68 PaaS offerings together with a web-based application for portability matching. We also identify further portability problems by porting the application to different PaaS vendors, validating ecosystem portability and giving hints for future research directions.