Abstract:The goal of the ICALT workshop "Comparing Educational Modelling* Languages on a Case Study" was to compare different Learning Design approaches. Various teams were asked to design and implement a common case study and to answer common given challenges. Then, a special issue on "Comparing Educational Modelling Languages on the "Planet Game Case Study" was proposed to give the workshop challengers the opportunity to describe their solution in more detail. It is now time to make the comparison. Based on an in-depth analysis and many exchanges with the teams involved, this paper introduces the approaches and highlights current challenges in the Learning Design field in connection with the pitfalls included in the case study and the given challenges.

The scenarization of educational activities, especially those that are going to take place within elearning platforms, has for a number of years represented a major challenge for groups working to favor the emergence of educational standards. In this paper we describe a meta-model, LDL (Learning Design Language), to formalize scenarized activities. We particularly highlight the correct adaptation of this meta-model for modeling various collaborative situations.

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This paper describes how we address the different steps proposed in the workshop "Comparing Educational Modeling Languages on a case study" with LDL and the associated infrastructure LDI.

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