1. Associate Professor, Dept. of Architecture, Seoul National Univ., Seoul 151-742, Korea (corresponding author).
2. PhD Candidate, Dept. of Architecture, Seoul National Univ., Seoul 151-742, Korea.
3. PhD, Full–time Lecturer, Dept. of Architectural Engineering, Kwangwoon Univ., Seoul 139-701, Korea.formerly, Dept. of Architecture, Seoul National Univ., Seoul 151-742, Korea.
4. Associate Professor, College of Architecture, Hanyang Univ., Seoul 133-791, Korea.