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)
Robot localization is one of the most common tasks in autonomous systems. Unlike most vision-based methods which perform localization from cameras mounted on the robot, we propose a system which uses an off-board camera to achieve localization. For this purpose, we use a similarity measure between a camera image and a synthetic image generated using a 3D(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)
The authoring of online educational material for microelectronics design is costly and requires expertise that the educators may not have. In this paper, we address this issue – more specifically the case of online training – and propose a technique to reduce authoring costs by reusing the documentation content from a design database. An extension for the(More)
Although research and practice has attributed considerable attention to Enterprise Resource Planning (ERP) projects their failure rate is still high. There are two main fields of research, which aim at increasing the success rate of ERP projects: Research on risk factors and research on success factors. Despite their topical relatedness, efforts to(More)