Lazy consensus is a method for decision-making according to which proposals within a group may be presumed to pass unless any explicit objections arise. It blends features of do-ocracy and consensus process. The Apache Software Foundation, which holds lazy consensus as a value, summarizes the method as "silence is consent."
Input: proposal within group, presumption of approval
Output: approval by silence or objection that triggers further deliberation
Lazy consensus is most widely employed among free/open-source software projects.
Free/open-source projects that employ lazy consensus often rely on email discussion lists for decision-making. The method helps reduce the traffic on such lists.