Legacy Modernization with AI in 10 Days
Executive Summary
One of the leaders in the Brazilian insurance sector sought technological evolution: its pension and policy management systems operated on a base built in the 90s, using VB6 and Classic ASP. Although functional, this base represented a growing strategic risk given the current demands for security, scalability, and innovation capacity.
Modernization became a priority. The central challenge was to migrate the core of a complex system with limited documentation, without interrupting operations, and with a deadline of only 10 days to prove the approach's viability.
Using the Genius platform, Squadra combined artificial intelligence and human expertise to conduct a complete software archaeology, map hidden dependencies, extract business rules, and execute the technological migration from VB6 and Classic ASP to .NET 8 and ASP.NET Core.
The result exceeded expectations: instead of just a feasibility study, Squadra delivered 170 migrated files with 100% error-free compilation and a fully functional and performant system, consolidating confidence in the Genius methodology as a modernization accelerator.
The Challenge
The client operated critical pension and policy management systems built with technologies from the 90s (VB6 and Classic ASP). Although functional, these platforms were without official support and presented security vulnerabilities. The scenario required a modernization effort with a dual challenge:
Technological Obsolescence: Legacy technology made maintenance difficult, prevented integration with modern solutions, and created barriers to compliance with new industry regulations.
Aggressive Proving Deadline: The client set a 10-day deadline to validate the modernization's feasibility, focusing on a complex core of the system that included main routing and data access.
The Solution
To overcome the challenge, Squadra adopted an approach that combined artificial intelligence and human expertise. The strategy was not limited to code translation; the goal was to reinvent the architecture for the future, with the Genius platform supporting every step.
Genius in Action: Software Archaeology and AI-Accelerated Migration
Discovery
The first stage was dedicated to a deep understanding of the legacy system, using Genius platform's AI capabilities to accelerate mapping and documentation.
Architecture Mapping: Automatic analysis of system flow and identification of hidden dependencies between components.
Business Rule Extraction: Identification and documentation of insurance logic embedded within the legacy code.
Intelligent Roadmap: Creation of a granular migration plan, prioritizing critical components to minimize risks.
Design
With the mapping complete, architectural decisions were made to ensure a secure migration aligned with modern technologies.
New Architecture Defined: Business logic in VB6 was directed to .NET 8, and the Classic ASP web portal was planned to evolve to ASP.NET Core.
Data Reverse Engineering: Without access to the original database, tables and relationships were reconstructed from source code analysis, ensuring data integrity in the new architecture.
Build / Implementation
Execution followed daily, focused cycles over the 10 days, with continuous validation to ensure quality and stability.
Daily Migration Cycles: Each day, a set of components was rewritten and validated, with an average of 17 files migrated per day, allowing for quick adjustments and keeping the project on track.
Continuous Validation: Integrated tests at each cycle ensured that all files compiled without errors and maintained original functionality.
Results
Delivery Beyond Expectations: The client expected a feasibility study; they received a fully functional and performant system, demonstrating the power of the methodology with Genius.
Consolidated Technical Confidence: The modern architecture and the quality of the generated code were recognized by the client's architects and developers.
Metric | Result |
|---|---|
Migration Rate | 170 files in 10 days |
Average Speed | 17 files migrated per day |
Code Quality | 100% of files compiling without errors |
Functionality | Fully functional and performant system |
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