Explain the concept of document-oriented storage in OrientDB.

The concept of document-oriented storage in OrientDB refers to the way data is organized and stored within the database. In a document-oriented storage model, data is stored as documents, where each document is a self-contained unit of information represented in a structured format, typically using formats like JSON (JavaScript Object Notation) or BSON (Binary JSON).

In OrientDB, document-oriented storage is one of the supported data models, alongside graph and object-oriented models.