The Art of Acceptance and Conservatism According to Postel

The Robustness Principle

Photo by Britt Weckx on Unsplash

The Robustness Principle seems to be one of software engineering’s lesser-known principles, but it is time that software engineers sat up and took notice of this nugget of wisdom.

It suggests that we developers should “Be liberal in what you accept, and conservative in what you send.”