Legacy System Assessment: AI-Powered Modernization Planning
Government & Public Sector | Enterprise Assessment
Large State Government Agency
A large state government agency responsible for administering critical public services that serve millions of citizens. The organization manages eligibility determination, case management, and service delivery through an integrated technology platform that processes thousands of transactions daily. As a critical component of state government operations, the system must maintain high availability while meeting strict regulatory compliance requirements and data protection mandates.
Massive Legacy System at a Modernization Crossroads
- Scale: tens of millions of lines of code across tens of thousands of files representing nearly two decades of development
- Aging Technology Stack: Legacy enterprise application server stack—technologies over 15 years old approaching end-of-support
- Monolithic Architecture: Tightly coupled components making incremental modernization extremely difficult
- Knowledge Gaps: Original developers have moved on; institutional knowledge undocumented or lost
- Compliance Pressure: Increasing regulatory requirements demanding modern security and audit capabilities
The agency needed to understand the full scope of their legacy systems before committing to a multi-year modernization effort. Traditional assessment approaches were estimated to take 12-18 months and cost millions of dollars.
System Portfolio Overview
Legacy Technology Stack
| Layer | Technologies |
|---|---|
| Backend | Legacy enterprise application server, server-side scripting |
| Configuration | XML-based configuration and data exchange |
| Frontend | Legacy web UI technologies, JavaScript |
| Database | Relational database with stored procedures |
| Integration | Batch processing, file-based interfaces |
Sembix deployed Sembix Strata™ in a secure AWS environment to perform comprehensive AI-powered analysis of the entire legacy codebase, delivering actionable modernization insights at a fraction of traditional assessment timelines.
Automated Codebase Inventory
Sembix Strata automatically catalogued all tens of thousands of files, identifying languages, frameworks, dependencies, and architectural patterns across the entire portfolio.
Dependency Mapping
AI-powered analysis traced dependencies between components, identifying tightly coupled modules and mapping data flows across system boundaries.
Complexity Assessment
Quantified technical debt and complexity metrics for each module, enabling risk-based prioritization of modernization efforts.
Modernization Roadmap
Generated phased modernization recommendations with effort estimates, identifying quick wins and high-risk areas requiring careful planning.
AWS Services Utilized
Complete inventory of the entire legacy portfolio
Every file classified by type, language, and function
Complete dependency analysis across all systems
Comprehensive Codebase Documentation
Delivered complete inventory including language breakdown, file counts, and lines of code for every component—documentation that didn't previously exist.
Technology Stack Analysis
Identified all technologies in use including legacy enterprise application server technologies, along with JavaScript, TypeScript, and modern web components, enabling informed technology selection for modernization.
Dependency Visualization
Mapped inter-system dependencies and data flows, revealing hidden complexity and integration points critical for modernization planning.
Phased Modernization Roadmap
Delivered actionable modernization plan with recommended sequencing, effort estimates, and risk assessments for each phase.
High Fidelity Prototypes
Created working prototypes demonstrating modernized architecture patterns, enabling stakeholders to visualize the target state and validate design decisions before full implementation.
Secure Assessment Environment
All analysis performed within agency's secure AWS environment, meeting federal and state compliance requirements for handling sensitive system information.
Sembix is an AWS Partner specializing in AI-accelerated application modernization. Through Sembix Strata, our agentic AI platform, we help organizations assess and modernize legacy applications at unprecedented speed while maintaining quality and reducing risk.
Our approach combines deep technical expertise with cutting-edge AI capabilities to deliver assessment and modernization outcomes that would traditionally require teams 10-20x larger. Sembix holds AWS Partner status and specializes in helping government agencies, healthcare organizations, and enterprises transform their mission-critical applications while meeting strict compliance requirements.
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