Management Sciences Department Universite du Quebec a Trois-Rivieres C.P. 500 Trois-Rivieres G9A 5H7 Quebec Canada;
Mathematics and Industrial Engineering Department Ecole Polytechnique de Montreal C.P. 6079 Montreal H3C 3A7 Quebec Canada;
logistics activities; barcodes; RFID; hospital pharmacy; medicine management; track-and-trace system; information technology;