Evaluating Classical Software Process Models as Coordination Mechanisms for LLM-Based Software Generation

• URL: http://arxiv.org/abs/2509.13942v1
• Date: Wed, 17 Sep 2025 13:11:49 GMT
• Title: Evaluating Classical Software Process Models as Coordination Mechanisms for LLM-Based Software Generation
• Authors: Duc Minh Ha, Phu Trac Kien, Tho Quan, Anh Nguyen-Duc,
• Abstract summary: This study explores how traditional software development processes can be adapted as coordination scaffolds for Large Language Model (LLM)-based MAS.<n>We executed 11 diverse software projects under three process models and four GPT variants, totaling 132 runs.<n>Both process model and LLM choice significantly affected system performance.<n>Waterfall was most efficient, V-Model produced the most verbose code, and Agile achieved the highest code quality.
• Score: 4.583390874772685
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: [Background] Large Language Model (LLM)-based multi-agent systems (MAS) are transforming software development by enabling autonomous collaboration. Classical software processes such asWaterfall, V-Model, and Agile offer structured coordination patterns that can be repurposed to guide these agent interactions. [Aims] This study explores how traditional software development processes can be adapted as coordination scaffolds for LLM based MAS and examines their impact on code quality, cost, and productivity. [Method] We executed 11 diverse software projects under three process models and four GPT variants, totaling 132 runs. Each output was evaluated using standardized metrics for size (files, LOC), cost (execution time, token usage), and quality (code smells, AI- and human detected bugs). [Results] Both process model and LLM choice significantly affected system performance. Waterfall was most efficient, V-Model produced the most verbose code, and Agile achieved the highest code quality, albeit at higher computational cost. [Conclusions] Classical software processes can be effectively instantiated in LLM-based MAS, but each entails trade-offs across quality, cost, and adaptability. Process selection should reflect project goals, whether prioritizing efficiency, robustness, or structured validation.

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