Abstract
This paper introduces an Educational Modeling Language (EML) to support the computational modeling of learning units. These computational models can be processed by suitable e-learning systems to support the authoring and delivering of learning experiences. Nevertheless, the modeling of learning units is a complex endeavor, involving issues of expressiveness, reusability, adaptability and flexibility. This paper proposes the Perspective-oriented EML to simplify this complexity. In PoEML, the model of a learning unit is not a single piece, as in current EMLs, but it is made up by several perspectives, where each perspective is focused on non-overlapping specific issues.
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