In Learning Process Engines, a main concern is to deliver rich pedagogical learning scenarios. However current e-learning systems are not completely capable of handling complex role structures and learning activity flows. To solve this issue, an activity instantiation model based on role access control is proposed. This model is capable of ensuring the completeness of the learning flow for each learner, and it allows the learner and the professor to know and maintain control of her learning process and also to participate with other learners in team-based tasks.

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Learning Process Engines Learning Systems Platforms and Architectures LPCEL Activity Instantiation Model