universal edit buttonとは 意味・読み方・使い方

The Universal Edit Button is a green pencil icon in the address bar of a web browser that indicates whether a web page (most often a wiki) is editable. It is similar to the orange "broadcast" RSS icon ("") that indicates that there is a web feed available. Clicking the icon opens the edit window. It was invented by a collaborative team of wiki enthusiasts, including Ward Cunningham, Jack Herrick, and many others. The concept was first conceived during the 2007 RecentChangesCamp in Montréal. After coding by Travis Derouin, Brion Vibber and other programmers, the button was officially launched on June 19, 2008.