​Entities are objects in an organization like customers, transactions, and drivers, products, etc.
​Sources are external sources of data where feature data can be found.
​Feature Tables are objects that define logical groupings of features, data sources, and other related metadata.
Feast contains the following core concepts:
Projects: Serve as a top level namespace for all Feast resources. Each project is a completely independent environment in Feast. Users can only work in a single project at a time.
Entities: Entities are the objects in an organization on which features occur. They map to your business domain (users, products, transactions, locations).
Feature Tables: Defines a group of features that occur on a specific entity.
Features: Individual feature within a feature table.