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Integrated Lifecycle Costing
1987 - 1996
Integrated information systems began fusing data, design, and knowledge across the AEC lifecycle, reducing fragmentation and strengthening decision support avenues. Cost and schedule control analyses emphasized data quality, timely information flows, and risk-aware decision making through probabilistic methods, enabling better management of project performance. Productivity modeling and constructability benchmarking advanced techniques to forecast outcomes, drive improvement, and link design-to-build processes with lifecycle outcomes. Historical Significance: The period marked a shift toward lifecycle-oriented cost management, integrating data-driven cost estimation, risk assessment, and procurement strategy to guide decisions from design through operation and handover. Foundational work on contract terms, procurement make-or-buy, and early transaction-cost considerations provided frameworks for understanding total project costs and incentives within complex projects.
• Integrated information systems aim to fuse data, design, and knowledge across the AEC lifecycle to reduce fragmentation and boost decision support, as shown by Computer Integrated Manufacturing (CIM) and related integration efforts across engineering, design, and construction domains [1], [17], [18], [19].
• Cost and schedule control analyses emphasize data quality, timely information flows, and risk-aware decision making, combining cost–scheduling integration with probabilistic methods to better manage project performance [3], [15], [16], [20].
• Contractor prequalification decision support uses generic and knowledge-based models to standardize procurement decisions and reduce selection risk, including criteria-driven approaches and rule-based expert systems [5], [8], [11], [7].
• Productivity modeling and measurement seeks to quantify drivers of performance to forecast outcomes and identify improvement opportunities using factor models, rule-based duration estimation, and empirical productivity data [14], [13], [2].
• Constructability benchmarking and integration emphasize evaluating design-to-build processes for continuous improvement, linking constructability assessment with project performance and lifecycle management [6], [1], [16].
Integrated Cost Management
1997 - 2003
Integrated Value-Based Project Controls
2004 - 2010
Target Value Design Practices
2011 - 2017
AI-Driven Cost Engineering
2018 - 2024