| Factor | Mean | Std. Deviation | %of Relative Importance Index | t-value | P-value | Rank |
|---|---|---|---|---|---|---|
| Project size and business required. | 4.17 | 0.711 | 83.37 | 15.507 | 0.000 | 1 |
| Project Nature (Traditionnel-Récursive-Unique). | 3.99 | 0.715 | 79.78 | 13.046 | 0.000 | 2 |
| The cost of the project. | 3.74 | 0.846 | 74.83 | 8.265 | 0.000 | 3 |
| Type of project (new construction, restoration and maintenance). | 3.69 | 0.684 | 73.71 | 9.451 | 0.000 | 4 |
| Project Location (packed or serviced). | 3.56 | 0.976 | 71.24 | 5.428 | 0.000 | 5 |
| Total | 3.83 | 0.498 | 76.58 | 15.716 | 0.000 | – |