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Automating Legacy App
Case Study

Automating Legacy IAM App Modernization in 55% less Time with NeuGAIN

Overview

A legacy IAM audit application was modernized in 55% less time using AI-assisted migration with Neurealm’s NeuGAIN. Download the case study to see the phase-by-phase breakdown. 

The Customer 

The client is a large U.S. healthcare technology company serving hospitals and health systems. Its customer identity audit application handles new customer registrations and change requests, with a reviewer workflow to approve, hold, deny, or delete each submission. The application was built on a monolithic JSP/Servlet stack. 

The Challenge 

The monolithic architecture had become an unmanageable black box, making every change high-risk and raising the probability of system-wide failure. The fragile codebase blocked new feature development. Manual migration would have been slow and error-prone, likely to overlook mission-critical business logic, and the absence of technical and business documentation meant starting with expensive manual reverse-engineering. 

The Neurealm Solution 

Neurealm applied AI-assisted modernization across discovery, analysis and planning, technical specification, and engineering and validation, with developers in the loop at every stage. The legacy JSP/Servlet search module was re-architected into a modern frontend and backend stack, with business logic extracted from the existing code and test cases generated as part of the flow. 

The result: 55% less time across discovery, migration, configuration, and testing compared to a traditional manual approach, with human review and approval on all AI-generated output. 

Results 

  • 87% time saved on initial audit and codebase mapping
  • 63% faster core module conversion 
  • 75% reduction in test refactoring time 

Download Case Study