This is a question we get from people being new to metadata platforms or users that are considering a migration from another data catalog to our Metadata Management Platform.
We believe that the best answer you can get to this question is in our blog:
What generation of metadata systems is OpenMetadata? Are you pull-based, push-based, or hybrid? How is it different from other open-source and commercial solutions?
Here you can find out some information about the main concepts around Open Metadata, mainly the ideas behind JSON Schemas and our schema-first APIs.