1. M.A.Sc. Student, Dept. of Building, Civil and Environmental Engineering, Concordia Univ., 1455 de Maisonneuve Blvd. W., Montreal PQ, Canada H3G 1M8.
2. Professor, Concordia Institute for Information Systems Engineering, Concordia Univ., 1455 de Maisonneuve Blvd. W., Montreal PQ, Canada H3G 1M8 (corresponding author).