Designing a secure model of an e-learning system—A UML-based approach

This paper discusses an e-learning system that has the appropriate security which foster trust for the student and promote loyalty in the system. To design secure model it uses UML. The use case diagram explains the functionality of the system using actors and use cases. The sequence diagram is used to describe interactions among objects in terms of an exchange of messages over time. Collaboration diagrams describe both the static structure and the dynamic behavior of the proposed e-learning system.