Výukový systém Ústřední školy ČOS

I've been reading about ways to improve digital services and make them more convenient for users. I think it's important to understand customer behaviour, test different ideas and analyse the results before making major changes. While looking into this topic subscriber journeys, engagement, retention , I came across Optiten and became interested in their approach to digital optimisation. Has anyone here worked with similar services or implemented improvements to an existing platform?