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