Abstract
This paper describes a conceptual model and an ontology-based framework for reusing and learning through context-aware annotations memory. This memory manages annotations and adapts actors (learner, tutor, teacher, and coauthor) behaviours with the various contexts of their activities. It offers a great reutilisability to share and have a better quality of learning. The annotation model that we propose is composed of three facets: cognitive, semantic and contextual. The architecture of our annotations memory contains many modules based on Web Services. This facilitates its integration with the other tools used by the actors of a computer environment for human learning like, for example, the e-Learning platforms and annotations tools.