Microservice Architecture of Modern eLearning Application

Learning Management Systems (LMS) have been integral to educational institutions for over 20 years. Technically, an LMS consists of functional components designed to deliver, discuss, explain educational materials, and assess user knowledge through various paradigms such as uploading assignments and online questionnaires. The prolonged and intensive use of such systems emphasizes the importance of their maintainability, allowing the accommodation of new components and the replacement of outdated ones. Over the years, the technological foundation of LMS components has transitioned from early versions of PHP to advanced Java, Python, and JavaScript packages. Data repositories have evolved from local relational databases to shared NoSQL databases. Communication technologies have shifted from NNTP news servers to multiple social applications like WhatsApp and Telegram.In this paper, we present architectural solutions implemented in a modern LMS called WBT-Master. This architecture specifically addresses the maintainability of modern LMS, ensuring they evolve alongside emerging Internet technologies. The practical significance of our work lies in its ability to support very heterogeneous components within a logically unified LMS framework. By discussing the architecture of WBT-Master, we offer a method for incorporating both old and new technological platforms into a single system. Additionally, we use this architecture to interface with cloud services, foster social interactions, and optimize user experience. This contributes to the evolution of E-Learning platforms, offering enhanced and more interactive educational experiences for both learners and educators.