The term "Swiss Army knife" is sometimes used metaphorically to describe usefulness, such as a software tool that is a collection of special-purpose tools. The term "Swiss Army knife" was coined by US soldiers after World War II, presumably because they had trouble pronouncing its original name, "Offiziersmesser". The "Swiss Army knife" has been added to the collection of the New York Museum of Modern Art (MoMA) and Munich's State Museum of Applied Art for its design.
http://en.wikipedia.org/wiki/Swiss_Army_knife