Barrier | Category of Respondents | N | Mean Rank | Sum of Ranks | |
1 | Lack of Timely Information The process is not automated hence cannot facilitate real-time progress measurement and it is also time-consuming. | Contractors | 35 | 40.17 | 1406 |
Consultants | 25 | 16.96 | 424 | ||
Total | 60 | ||||
2 | Laborious Data Gathering Manual data collection and extraction, as well as tedious calculations, make the process operose, inaccurate and steep. | Contractors | 35 | 32.71 | 1145 |
Consultants | 25 | 27.40 | 685 | ||
Total | 60 | ||||
3 | Variable Quality of Data Different units of measurement employed impacting on duration and accuracy of procession. | Contractors | 35 | 30.04 | 1051.5 |
Consultants | 25 | 31.14 | 778.5 | ||
Total | 60 | ||||
4 | Fixation on Time Data Using time data only in computing progress. | Contractors | 35 | 34.50 | 1207.5 |
Consultants | 25 | 24.90 | 622.5 | ||
Total | 60 | ||||
5 | Fixation on Cost Data Using cost data only in computing progress. | Contractors | 35 | 34.97 | 1224 |
Consultants | 25 | 24.24 | 606 | ||
Total | 60 | ||||
6 | Intricate Measurement Reports Difficulty in generating structured work breakdown to facilitate activity measurement and easy visualization of progress monitoring reports. | Contractors | 35 | 30.73 | 1075.5 |
Consultants | 25 | 30.18 | 754.5 | ||
Total | 60 | ||||
7 | Reliance on Supervisor’s Judgement Dependence on the opinion of supervisors not grounded on firm data. | Contractors | 35 | 30.96 | 1082.5 |
Consultants | 25 | 27.98 | 747.5 | ||
Total | 60 | ||||
8 | Quality Integration Constraint Difficulty in integrating cost, time and scope of work (quality) into the progress measurement. | Contractors | 35 | 21.86 | 765 |
Consultants | 25 | 42.60 | 1065 | ||
Total | 60 | ||||
9 | Generic and Non-systematic Approach Method of progress measurement is unspecified in contract documents. | Contractors | 35 | 32.30 | 1130.5 |
Consultants | 25 | 29.90 | 699.5 | ||
Total | 60 | ||||
10 | Deficient Method Statement Difficulties in analyzing causes of deviations. | Contractors | 35 | 38.09 | 1333 |
Consultants | 25 | 19.88 | 497 | ||
Total | 60 | ||||
11 | Frequent Variation in Work Changing nature of work necessitating corrective measures | Contractors | 35 | 33.51 | 1173 |
Consultants | 25 | 26.28 | 657 | ||
Total | 60 | ||||
12 | Contentious Claims Non-defined work scope and responsibilities, and poor documentation. | Contractors | 35 | 22.00 | 770 |
Consultants | 25 | 21.80 | 1060 | ||
Total | 60 |