Code Digital Twin: Empowering LLMs with Tacit Knowledge for Complex Software Development

• URL: http://arxiv.org/abs/2510.16395v2
• Date: Mon, 27 Oct 2025 12:09:29 GMT
• Title: Code Digital Twin: Empowering LLMs with Tacit Knowledge for Complex Software Development
• Authors: Xin Peng, Chong Wang,
• Abstract summary: We identify challenges from both software and large language models perspectives.<n>We propose the Code Digital Twin, a framework that models both the physical and conceptual layers of software.<n>Our vision positions it as a bridge between AI advancements and enterprise software realities.
• Score: 8.821206496273842
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in large language models (LLMs) have demonstrated strong capabilities in software engineering tasks, raising expectations of revolutionary productivity gains. However, enterprise software development is largely driven by incremental evolution, where challenges extend far beyond routine coding and depend critically on tacit knowledge, including design decisions at different levels and historical trade-offs. To achieve effective AI-powered support for complex software development, we should align emerging AI capabilities with the practical realities of enterprise development. To this end, we systematically identify challenges from both software and LLM perspectives. Alongside these challenges, we outline opportunities where AI and structured knowledge frameworks can enhance decision-making in tasks such as issue localization and impact analysis. To address these needs, we propose the Code Digital Twin, a living framework that models both the physical and conceptual layers of software, preserves tacit knowledge, and co-evolves with the codebase. By integrating hybrid knowledge representations, multi-stage extraction pipelines, incremental updates, LLM-empowered applications, and human-in-the-loop feedback, the Code Digital Twin transforms fragmented knowledge into explicit and actionable representations. Our vision positions it as a bridge between AI advancements and enterprise software realities, providing a concrete roadmap toward sustainable, intelligent, and resilient development and evolution of ultra-complex systems.

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