Il giorno mercoledì 13 agosto 2014 19:13:16 UTC+2, thequie... at gmail.com ha scritto: > What is the difference between traits and roles? People keep using the same names to mean different concepts. For me traits are the things described here: http://www.iam.unibe.ch/~scg/Archive/Papers/Scha03aTraits.pdf I have no idea of what you mean by roles.