1. Department of Construction Technology and Management, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
2. Institute of Distance Learning, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
3. Faculty of Computing, Engineering and the Built Environment, Millennium Point, Birmingham, UK
4. University of Johannesburg, Johannesburg, South Africa
5. Department of Architecture and Built Environment, Northumbria University, Newcastle-Upon-Tyne, UK