Difference between OData and REST web services

Question

What is the difference between OData and REST-ful web services?

Answer 1

From the OData documentation:

The OData Protocol is an application-level protocol for interacting with data via RESTful web services.

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The OData Protocol is different from other REST-based web service approaches in that it provides a uniform way to describe both the data and the data model.

Answer 2

REST stands for REpresentational State Transfer which is a resource based architectural style. Resource based means that data and functionalities are considered as resources.

OData is a web based protocol that defines a set of best practices for building and consuming RESTful web services. OData is a way to create RESTful web services thus an implementation of REST.