Rough consensus is a term used in consensus decision-making to indicate the "sense of the group" concerning a particular matter under consideration. It has been defined as the "dominant view" of a group as determined by its chairperson. The term was first used by the Internet Engineering Task Force (IETF) in describing its procedures for working groups (WGs).
The means to establish rough consensus was described by the IETF as follows:
Working groups make decisions through a "rough consensus" process. IETF consensus does not require that all participants agree although this is, of course, preferred. In general, the dominant view of the working group shall prevail. (However, "dominance" is not to be determined on the basis of volume or persistence, but rather a more general sense of agreement). Consensus can be determined by a show of hands, humming, or any other means on which the WG agrees (by rough consensus, of course). Note that 51% of the working group does not qualify as "rough consensus" and 99% is better than rough. It is up to the Chair to determine if rough consensus has been reached (IETF Working Group Guidelines and Procedures).
The phrase is often extended into the saying "rough consensus and running code", to make it clear that the IETF is interested in practical, working systems that can be quickly implemented. There is some debate as to whether running code leads to rough consensus or vice versa.
Famous quotes containing the words rough and/or consensus:
“He doesn’t want you for friends, that’s why he did it. You see, when guys have been in the line as long as we have, you find out it’s no good to make friends, ‘cause when a friend gets it—well, it’s rough on you. The buddies that come with you you’re stuck with, but you don’t make no new ones. It’s the dyin’ truth.”
—Gil Doud, U.S. screenwriter, and Jessie Hibbs. Johnson (Marshall Thompson)
“A consensus politician is someone who does something that he doesn’t believe is right because it keeps people quiet when he does it.”
—John Major (b. 1943)