Stefan Hörmann

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This paper shows that in education and training systems LOM can be used to map the structure of courses. The necessary extension of the aggrega-tion level is introduced. The description of the courses created with LOM allow for the reuse at all levels. Rhetoric didactic relations between the learning objects are also stored in the LOM records and support(More)
Using unique archival data on 81 projects from a major ERP vendor, we study whether transaction characteristics are included in the vendor's estimation of risk to project profitability. We hypothesize that project size, contract type, strategic importance, and client familiarity are included in the risk estimations. Regression analysis suggests that,(More)
We investigate the effect of exploitative and exploratory learning activities on ITO vendor profitability. We present a mixed-method strategy to iteratively inform our research with an unprecedented data set of both qualitative and quantitative data on projects of the ERP service vendor OMEGA. In this paper, we report on initial quantitative findings, which(More)
The aim of this paper is to compare risk profiles of individual software development (ISD) and packaged software implementation (PSI) projects. While researchers have investigated risks in either PSI projects or ISD projects, an integrated perspective on how the risk profiles of these two types of information system (IS) projects differ is missing. To(More)
Effective allocation of resources to risk mitigation still is a pivotal challenge to project managers. Thus, researchers and practitioners compile commonly important risks and present them as checklists, risk rankings, and other methods to help project managers in justifying allocating resources for mitigation. In this paper, we challenge the static nature(More)