Dennis Mancl Steven Fraser Bill Opdyke Ethan Hadar Irit Hadar Architecture in an agile world. 719-720 2009 OOPSLA Companion http://doi.acm.org/10.1145/1639950.1639981 conf/oopsla/2009c db/conf/oopsla/oopsla2009c.html#ManclFOHH09