 This study examined the development and operation of an online platform for teaching mathematics at higher education level. It focused on the software development lifecycle, SDLC, which is a systematic approach to developing and maintaining software applications. Additionally, it compared the SDLC with the ADDI model, which is a framework for designing instructional materials. The researchers also looked into the roles and responsibilities of the team members involved in the development and maintenance of the platform. Finally, they conducted surveys to evaluate the effectiveness of their proposed model. This article was authored by Katarina V. Lesenko, Sergey V. Volkov, Irina V. Lovinova, and others.