Öryggisventill is software that allows a group of relevant individuals to support, oppose, or gauge contention on issues. What does this mean practically? To give the most prominent example so far, Safety Valve is being used to allow the Icelandic public to support or oppose all bills and motions being put through Alþingi (Icelandic Parliament). As such, Öryggisventill enables public feedback on parliamentary proposals. 

https://startupiceland.com/2014/08/01/oryggisventill-an-icelandic-open-source-project-that-gives-power-to-the-people/