4.5.3 The Relationship Between Firms’ Experience and The D&B Methods In terms of responding firms’ experience, Table 4.7 shows that, regardless of the experience, all the responding firms favour traditional D & B followed by novation D & B when it shows more than 50% involvement in traditional D & B. Firms with less than five years experience, have not ventured into Develop and Construct, Designer-led, and DBFO yet. It appears that those firms with more than ten years experience do not favour designer-led D & B whereas the firms with six to ten years experience least favour Design and Manage.
Table 4.7: Relationship between firms’ experience and D&B methods
Method
Traditional D&B Novation D&B Design and Manage Develop and Construct Designer-led D&B DBFO
Firms’ experience < 5 years No % 3 50 2 33 1 17
6 - 10 years No % 16 67 16 67 1 4 4 17 2 8 5 21
DBFO: Design, Build, Finance, Operate
85
11 - 20 years > 20 years No % No % 22 65 13 62 17 50 10 48 4 12 4 19 10 29 6 29 2 6 1 5 5 15 3 14
% 54 45 10 20 5 13
Total % 64 53 12 24 6 15