Here are a couple recent research papers that basically say no, UML isn't used much in practice. http://www.gorschek.com/doc/publications_files/GorschekTempero

Here are a couple recent research papers that basically say no, UML isn't used much in practice. http://www.gorschek.com/doc/publications_files/GorschekTemperoAngelisModeling20140327.pdf http://www.gorschek.com/doc/publications_files/GorschekTempe... http://oro.open.ac.uk/35805/ http://oro.open.ac.uk/35805/ (via Erik Meijer on Twitter)