Tribue Innovation Launches "AI Replace" Service for Migrating Legacy Systems with AI

Key Points of the Announcement

Tribue Innovation newly launches "AI Replace," a service that automates the analysis, requirements definition, and testing of legacy systems using generative AI. Significantly shortens migration periods from the conventional 2-5 years to 6 months-1.5 years, and reduces migration costs by up to 60% compared to conventional methods. *The stated figures and reduction effects vary depending on the scale and status of the system to be migrated. Adopts "phased migration" as a standard approach to ensure business continuity, achieving zero-downtime migration. Supports diverse legacy technology stacks such as RPG, COBOL, VB6, and older Java versions, with a secure ISMS certified security system.

Tribue Innovation Inc. (Headquarters: Tokyo, hereinafter "the Company") announced today, April 28, 2026, the launch of "AI Replace," a service that utilizes generative AI to migrate legacy systems to modern architectures at low cost and low risk.

This service provides a fundamental solution using AI to address the "2025 Digital Cliff" problem (aging, complexity, and black-boxing of legacy systems) faced by Japanese companies.

Background: Japan's Legacy System Problem According to estimates by the Ministry of Economy, Trade and Industry, if aging core systems are left unaddressed, there is a potential for economic losses of up to 12 trillion yen per year after 2025 (the so-called "2025 Digital Cliff"). In many Japanese companies, systems built 10-30 years ago still form the core, and the increasing reliance on specific individuals, technical debt, and maintenance costs have become serious management challenges.

On the other hand, conventional system replacements are often large-scale projects spanning 2-5 years and costing hundreds of millions to billions of yen, with the risk of business interruption during migration and enormous man-hours for requirements definition acting as deterrents. Against this backdrop, the Company has developed and put into practical use a new migration approach utilizing generative AI.

Overview of "AI Replace" Service "AI Replace" is a service that integrates generative AI into all stages of system migration, simultaneously achieving faster migration, cost reduction, and quality improvement. Its main functions and features are as follows:

Function | Content | Effect ---|---|--- AI-driven comprehensive analysis of existing systems | AI collectively analyzes source code, databases, and infrastructure, automatically documenting specifications | Shortens investigation man-hours from months to days Automated requirements definition and design generation | AI automatically generates new system requirements definitions and design documents from analysis results | Reduces requirements definition man-hours by up to 70% Phased migration (zero downtime) | Ensures 100% business continuity through phased migration using the Strangler Fig pattern | Eliminates business interruption risk AI automated test generation | AI learns the behavior of existing systems and automatically generates and executes regression tests | Achieves over 90% test coverage

Main Supported Migration Patterns The following shows typical migration routes. Please consult us for technology stacks not listed.

Source (Legacy) | Destination (Modern) | Common Industries ---|---|--- AS/400 (IBM i) + RPG / COBOL | Java (Spring Boot), AWS / Azure, PostgreSQL | Manufacturing, Distribution, Wholesale, Agricultural Cooperatives, Credit Unions Mainframe COBOL | Java / Microservices, Cloud | Finance, Insurance, Public Sector, Large Manufacturing VB6 / VBA / Access | .NET / React, SQL Server / RDB | Mid-sized Manufacturing, Real Estate, Healthcare, Construction Oracle Forms / Reports | React / Vue.js, REST API | Distribution, Government, Manufacturing, Logistics Delphi / PowerBuilder | Java / Python, Cloud-native | Small and Medium Manufacturing, Wholesale, Services Older Java EE / Struts 1.x | Spring Boot, Microservices | E-commerce, Finance, SaaS, General Enterprise

Service Plans and Pricing This service offers three plans depending on the scale and complexity of the system.

Plan | Target | Price (excl. tax) | Estimated Period ---|---|---|--- Starter Plan | Subsystems, small-scale migration | Consultation (presented after free assessment) | 3-6 months Standard Plan | Entire core system | Consultation (presented after free assessment) | 6-12 months Enterprise Plan | Integration of multiple core systems | Individual quotation | Consultation

We offer a free initial assessment (current status diagnosis, estimated cost, migration feasibility judgment) and accept consultations at any time.

Supported Technology Stacks (Main Examples) RPG / COBOL / Mainframe, VB6 / .NET Framework (older versions), Java (older versions), Oracle Forms, Delphi, PowerBuilder, Struts 1.x