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Abeebat Ajirotutu

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Review Open access 2023

Probabilistic Schedule Risk Quantification: Monte Carlo Methods, Float Erosion, and the Limits of Deterministic Planning

This review examines how uncertainty-informed scheduling strengthens the credibility of project time forecasting in complex delivery environments. Its purpose is to assess the limitations of fixed-date planning and to explain how probabilistic analysis improves understanding of completion risk, float consumption, and critical-path instability. The study adopts a narrative review approach, synthesising scholarly and professional literature on deterministic scheduling, schedule risk modelling, Monte Carlo simulation, network sensitivity, governance, and data-led project control. Emphasis is placed on how probability-based outputs can support more defensible planning, contingency allocation, and executive decision-making in uncertain operating contexts. The review finds that deterministic schedules remain necessary for defining work logic, dependencies, milestones, and baseline accountability, but they are analytically constrained when used as instruments of prediction. Single-point duration estimates, static critical paths, and nominal float values often conceal uncertainty arising from procurement delays, productivity variation, design development, resource limitations, stakeholder interfaces, and systemic operational risk. Monte Carlo simulation is shown to provide a more rigorous basis for schedule assurance by generating completion-date distributions, confidence levels, sensitivity rankings, and risk-driver insights. The study further establishes that float is not a permanent reserve but a dynamic network property that may erode rapidly as near-critical paths emerge and project assumptions change. The review concludes that probability-based schedule analysis should be institutionalised as a governance practice rather than treated as an optional technical exercise. It recommends improved schedule-quality assurance, transparent modelling assumptions, sensitivity-based monitoring, integration of real-time performance data, and stronger executive capacity to interpret probabilistic evidence. These measures can enhance schedule realism, strengthen accountability, and improve delivery confidence across complex projects.

Dominic Feboh, Abeebat Ajirotutu, Ogochukwu T Izuchukwu · 0 citations
Review Open access 2026

Data-Driven Project Controls: The Convergence of EVM, Business Intelligence, and Real-Time Performance Visualization

This paper examines how contemporary project-control practice is being transformed by the integration of Earned Value Management, Business Intelligence, predictive analytics, and real-time performance visualization. Its purpose is to clarify how these interrelated capabilities strengthen cost, schedule, risk, resource, and governance visibility in complex project environments. The study adopts a conceptual review approach, drawing on scholarly and professional literature on project controls, performance measurement, analytics, data architecture, cybersecurity, forecasting, and digital transformation. Through this approach, the paper synthesises existing knowledge to explain the technical, organisational, and strategic conditions required for project-control systems to become more predictive, transparent, and decision-oriented. The review finds that Earned Value Management remains a foundational framework for measuring cost and schedule performance, but its value increases substantially when integrated with Business Intelligence platforms and visual analytics. Business Intelligence enables the consolidation of dispersed project data, while real-time dashboards translate complex indicators into accessible intelligence for managers, executives, contractors, and other stakeholders. The study further finds that predictive analytics and early-warning systems can improve forecasting accuracy, reveal emerging delivery risks, and support corrective action before deviations become irreversible. However, these benefits depend on reliable data architecture, strong governance, cybersecurity assurance, employee readiness, and a culture that supports evidence-based decision-making. The paper concludes that modern project controls should evolve from retrospective reporting into strategic performance governance. It recommends that organisations standardise control metrics, invest in interoperable digital systems, strengthen data governance, develop analytical competencies, and embed human-centred automation into formal decision processes to improve delivery certainty and organisational accountability across diverse, data-intensive project-based organisations and institutional delivery contexts.

Ogochukwu T Izuchukwu, Dominic Feboh, Abeebat Ajirotutu · 0 citations