Robustness principle - Wikipedia, the free encyclopedia
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:[1]
- TCP implementations should follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.
In other words, code that sends commands or data to other machines (or to other programs on the same machine) should conform completely to the specifications, but code that receives input should accept non-conformant input as long as the meaning is clear.
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