Nien-Lin Hsueh Lin-Chieh Wen Der-Hong Ting William C. Chu Chih-Hung Chang Chorng-Shiuh Koong An Approach for Evaluating the Effectiveness of Design Patterns in Software Evolution. 315-320 2011 COMPSAC Workshops http://doi.ieeecomputersociety.org/10.1109/COMPSACW.2011.59 conf/compsac/2011w db/conf/compsac/compsac2011w.html#HsuehWTCCK11