Onteon is a box with all the tools you need to create, run and manage your application regardless of it kind. It doesn't matter if it is small or large, legacy or new, containerized and non-containerized. Onteon is built to be quick, reliable, and straightforward to use.
If you want to play with Onteon the best way is to start with Getting started chapter. Small tutorials will show you basics about how to interact with platform and what are the main capabilities.
The general overview of the platform and it components can be found here.