A Proposed procurement document structuring framework for modular housing based on a comparative analysis of national requirement structures

초록

This study proposes a function-based framework for structuring procurement documents for modular housing based on a comparative analysis of national requirement structures. Rather than directly comparing document titles or institutional labels, the study examines how modular-related requirements are organized and operated across countries and reclassifies them into four functional domains: design, construction, construction management, and submission and evaluation. A qualitative document analysis was conducted using national modular-related guidance, approval, and assessment documents from six countries: Singapore, Hong Kong, the United Kingdom, New Zealand, Australia, and the United States. The findings show that although these national documents differ in format and regulatory context, they share comparable functional structuring logics. Submission and evaluation emerged as a common core function across countries, while the relative emphasis on design, construction, and construction management varied by operating type. Construction management was more prominent in central regulatory authority-led systems, design in certification-, warranty-, and conformity-centered systems, and construction in national framework with subnational approval implementation systems. Based on these findings, the study proposes a type-adaptive framework that retains four common functional blocks while adjusting the level of detail of specific blocks according to the relevant national operating context.

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