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Uncovering the hidden gem: The role of the undervalued quality in projects

Organization, Technology and Management in Construction: an International Journal
Volume 16 (2024): Issue 1 (January 2024)
By:
Open Access
|Aug 2024

Figures & Tables

Fig. 1:

Graphical distribution of PUI-values by economic benefit (Q6). PUI, Project Unified Index.
Graphical distribution of PUI-values by economic benefit (Q6). PUI, Project Unified Index.

Fig. 2:

Differences in the relative frequencies of the two groups (‘Yes’–‘No’).
Differences in the relative frequencies of the two groups (‘Yes’–‘No’).

Fig. 3:

Tree graph for Q6 with C&RT.
Tree graph for Q6 with C&RT.

Descriptive statistics about organisations

CategoryPercentage (%)
Employees
    Micro (1–9 employees)8.47
    Small (10–49 employees)18.36
    Mid-size (50–249 employees)20.62
    Large (250+ employees)51.13
    N*1.41
Annual revenue
    <$1 million13.28
    $1+ million – $10 million13.56
    $10+ million – $50 million10.73
    $50+ million – $1 billion12.71
    >$1 billion22.60
    N*27.12
Business activity sector
    Private sector58.20
    Public sector22.03
    NGO14.69
    N*5.10
Industry classification1
    Communication services3.67
    Consumer discretionary15.54
    Consumer staples3.96
    Energy + other sector (health care,9.63
    industrials etc.)5.93
    Financials10.17
    Health care14.41
    Industrials17.23
    Information technology4.00
    Materials + other sector (health care, industrials etc.)3.68
11.78
    Real Estate + other sector
    Other and N*

Distribution of PUI values

PUI-valueTotal no. of projectsEconomic benefit Q6 = ‘Yes’No economic benefit Q6 = ‘No’
CountPercentCountPercentCountPercent
351.4110.5443.28
4133.6763.2664.92
5298.19115.981310.66
66819.213016.303024.59
711331.926032.613629.51
86016.954222.83129.84
9318.761910.3386.56
10102.8242.1754.10
1110.2810.54––
Missing246.78105.4386.56

Descriptive statistics about projects

CategoryPercentage (%)
Participants in the project
    Micro (1–9 employees)39.83
    Small (10–49 employees)45.20
    Mid-size (50–249 employees)9.04
    Large (250+ employees)4.24
    N*1.69
Experience of participants in projects
    <2.0 years52.55
    2.0–4.9 years29.67
    5.0–8.0 years11.30
    >8.0 years6.48
Budget
    <$1 million47.18
    $1+ million – $10 million20.33
    $10+ million – $50 million7.63
    $50+ million – $1 billion3.11
    >$1 billion0.56
    N*21.19
Project management role
    Customer/user5.08
    Project management team member13.28
    Project manager19.21
    Project sponsor/Owner3.11
    Project team member38.98
    Team manager7.91
    Other + N *12.43
Economic profit
    Yes52.00
    No34.46
    N*13.56
Traditional project evaluation aspects:
Time
    Much earlier0.28
    Earlier3.39
    On-time33.62
    Late47.74
    Much late14.41
    N*0.56
Cost
    Much under budget0.56
    Under budget7.63
    On budget51.98
    Over budget29.94
    Much over budget5.65
    N*4.24
Quality
    Better18.65
    Exactly57.06
    Imperfectly21.75
    N*2.54

Mann–Whitney U test by variable Q6

VariableRank Sum NoRank Sum YesUZp-valueZ adjustedp-valueValid NoValid Yes
Time16,783.029,882.09,402.00-2.29530.0217-2.49420.0126121184
Cost17,126.526,829.59,986.50-0.75410.4507-0.83330.4046119177
Quality16,050.528,799.59,029.50-2.25660.0240-2.57890.0099118181
PUI*14,220.527,395.57,665.50-3.25820.0011-3.35020.0008114174

Change of indices by Q6

Numeric labelTimeCostQuality
YesNoYesNoYesNo
110.8718.185.088.4016.5829.66
245.6551.2431.6431.0962.9855.93
339.1327.2753.1152.9420.4414.41
43.813.319.606.73––
50.540.000.570.84––
Median223322
QBI’0.5240.4240.5730.5710.7350.715
SDI’0.6560.7110.5780.5990.4810.577
L’0.3900.3930.3780.3940.6020.664
DOI: https://doi.org/10.2478/otmcj-2024-0015 | Journal eISSN: 1847-6228 | Journal ISSN: 1847-5450
Journal RSS Feed
Language: English
Page range: 224 - 236
Submitted on: Sep 5, 2023
Accepted on: May 21, 2024
Published on: Aug 14, 2024
Published by: University of Zagreb
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
iron triangle,
triple constraint variables,
time–cost–quality trade-off,
project quality,
project success,
owner’s benefit,
profitability
Related subjects:
Engineering,
Introductions and overviews,
Engineering, other

© 2024 János Erdei, Zoltán Sebestyén, Dina Alfreahat, published by University of Zagreb
This work is licensed under the Creative Commons Attribution 4.0 License.

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