PlantUML — Fuzzy Delphi / MPSI Activity

@startuml
title Detailed Fuzzy Delphi, MPSI and QI Computational Methodology

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:Initial KPI Pool
From literature review and content analysis;

:Expert Panel Formation;
note right
Eligibility criteria:
construction experience,
megaproject experience,
senior/top management role,
sectoral diversity.
end note

:Fuzzy Delphi Questionnaire;

:Linguistic Expert Ratings;

:Transform ratings into Triangular Fuzzy Numbers;

:Aggregate pessimistic, realistic and optimistic scores;

:Defuzzification using centre of gravity;

:Threshold determination;

fork
  :Geometric mean threshold;
fork again
  :Strict threshold;
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  :Moderate threshold;
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  :Conservative threshold;
end fork

:Sensitivity analysis of KPI retention;

if (KPI retained?) then (yes)
  :Validated KPI portfolio;
else (no)
  :Reject, revise or classify as optional;
endif

:Expert weighting of retained KPIs;

:Kendall's W agreement test;

:Mean ratings and KPI weights;

:Domain weighting;

:Initial MPSI formula;

:Structured interviews;

:SMART Quantitative Indicator Development;

:Empirical questionnaire survey;

:Apply fuzzy sets theory;

:Apply Modified Horizontal Approach;

:Apply Bisector Error Method;

:Develop fuzzy membership functions;

:Define quantitative performance ranges;

:Final KPI Dictionary and MPSI Scoring Rules;

stop

@enduml