Serverworks Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; President: Ryo Oishi; hereinafter: Serverworks), an AWS Premier Tier Services Partner, has released a case study detailing its support for Mitsubishi Heavy Industries, Ltd. (hereinafter: Mitsubishi Heavy Industries) in the in-house development of internal systems utilizing AWS and generative AI. ■ Background of the Implementation Mitsubishi Heavy Industries, with its broad business domains and numerous business divisions, aimed to effectively utilize limited IT personnel and promote system development across the organization. Furthermore, they had a need to centrally manage the knowledge accumulated from customer inquiries and resolve the issue of knowledge being confined to specific individuals. Additionally, in the utilization of generative AI, there was a desire to prevent individual optimization in each business division and to safely deploy it company-wide while maintaining control over security and operational rules. To realize these concepts through in-house development, Serverworks, with its track record of development in AWS environments, was selected as the technical support partner to supplement expertise in infrastructure and backend domains. ■ Overview of Initiatives Serverworks provided expertise in infrastructure, backend, and AI, and provided technical support for the in-house development of the following two systems: Ticket Management System A system was built on AWS for business divisions to centrally manage customer inquiries and work requests. Serverworks provided technical support in the backend domain and development assistance through mob programming. Company-wide AI Workspace An AI workspace common to the entire company was developed to enable searching internal knowledge and summarizing documents using generative AI. Various AWS services for building and expanding generative AI applications were adopted for the system infrastructure. ■ Implementation Results Centralized inquiry managem