1. KEUNGOUI KIM, School of Architecture, Planning & Environmental Policy, University College Dublin, Belfield, Dublin, Ireland.
2. JUNSEOK HWANG, Technology Management, Economics and Policy Program, Seoul National University, Gwanak-gu, Seoul, South Korea.
3. SUNGDO JUNG, Korea Construction Infonet, Seoul, South Korea.
4. EUNGDO KIM(corresponding author), Graduate School of Biomedical Convergence, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju 28644, South Korea.