PoEML: Modeling learning units through perspectives

• PoEML modeling of learning units is arranged in several perspectives.
• Perspectives' separation supports reusability, adaptability and flexibility.
• Dependencies among perspectives have been minimized and identified.

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.