Object-Oriented Architecture of a Modern Learning Management System.

Learning Management Systems (LMS) are software systems to implement different e-learning scenarios in practice. Developing LMS that satisfy the needs and desires of teachers is crucial in e-learning. In a simple case, teachers need to provide a set of files to be downloaded by students (library) and participate in an asynchronous discussion (discussion forum). In more complex cases, students are provided with synchronous communication and collaboration tools, implement practical assignments, use virtual reality landscapes, etc. Teachers see a particular LMS from the perspective whether it is capable of implementing an e-learning scenario needed by the teacher, or not. Thus, a modern LMS should demonstrate the ability to implement a variety of different e-learning scenarios, and should support an evolutionary development paradigm to adopt the system functionality to permanent changes of user requirements.
This paper proposes a novel object-oriented architecture for implementing learning management systems suitable for evolutionary development of variety of e-learning scenarios on a single software platform.