External factors may have a joint contribution
in this respect. Turning to innovative design solutions, although it has
been widely acknowledged that the conception of good design ideas
is often a result of deep collaboration among team members under
innovation-conducive environments [55], this factor could be dependent
very much upon the opportunity for the project team to innovate,which
is invariably determined by such factors as types of project and client
requirements, rather than the actual IDR levels alone [56].