In computing, the robustness principle is a general design guideline for software:
:Be conservative in what you do, be liberal in what you accept from others (often reworded as "Be conservative in what you send, be liberal in what you accept").
The principle is also known as Postel's law, after Internet pioneer Jon Postel, who wrote in an early specification of the Transmission Control Protocol that:
RFC 761: Transmission Control Protocol. Jon Postel (ed ), January 1980.
:TCP implementations should follow a general principle of robustness: be conservative in what you do, be liberal in wha...