How Ravne tokens and assets are different from ERC20?

I think most of people who knows Ravencoin project don't really understand what it use for and how it work.

All I found is the same information talk about create a tokens and assets. But what are the real use cases in the real world?. Witch problem Ravecoin solve that ERC20 not solved yet?

Is Ravnecoin walk side by side with legal contracts?