Object-Level Multi-Dimensional Analysis of Level of Information Requirements Across Project Lifecycle

Abstract: Optimizing multi-purpose specifications requires understanding information requirement overlap and burden distribution, yet systematic object-level analysis remains absent. This study introduces a hierarchical 12-KPI framework quantifying geometrical, alphanumerical information, and documentation requirements across 80 objects, 22 purposes, and five lifecycle phases using 5,048 specifications. The key contributions include: (1) a validated three-archetype hierarchy with distinct temporal signatures; (2) the identification of universal objects as multi-purpose integration points; (3) the quantification of purpose-specific uniqueness challenging consolidation assumptions; (4) an interactive dashboard enabling evidence-based Exchange Information Requirement optimization. This object-purpose-phase granularity advances systematic BIM specification from aggregate analysis to decision-support frameworks for practitioners.