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Legacy System Modernization with API-Driven Feature Integration
  1. case
  2. Legacy System Modernization with API-Driven Feature Integration

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Legacy System Modernization with API-Driven Feature Integration

chromedia.com
Information technology
Business services

Legacy System Constraints and Feature Delivery Challenges

The client faces significant challenges with a legacy codebase that is unstable and non-refactorable, inherited from a previous development team. Budget and timeline constraints prevent a complete system rebuild, while the need to add critical new features risks scope creep and operational disruption. The solution must balance immediate functionality delivery with future-proof architecture.

About the Client

Software solutions provider specializing in decision-making and evaluation systems for organizations

Modernization Goals

  • Implement new features without destabilizing existing operations
  • Create scalable architecture for future system rewrite
  • Minimize technical debt through API-driven integration
  • Improve evaluator accountability and user experience
  • Establish clear use case definitions to prevent scope creep

Core System Requirements

  • RESTful API layer for legacy-modern system communication
  • Modular feature components with independent deployment
  • Enhanced feedback mechanisms for evaluation processes
  • Criteria visibility dashboard for decision-makers
  • User interface modernization with accessibility improvements

Technology Stack

Node.js/Python for API services
React/Vue.js for frontend components
Docker containerization
Cloud-native architecture (AWS/Azure)
Legacy database connectors

System Integrations

  • Existing user authentication system
  • Legacy database connectors
  • Third-party analytics tools
  • Current payment processing gateway

Operational Requirements

  • 99.9% system availability during peak usage
  • API response time under 200ms
  • Role-based access control (RBAC)
  • Automated CI/CD pipeline
  • Scalable microservices architecture

Expected Business Outcomes

The solution will enable immediate feature delivery while creating architectural pathways for future modernization. By decoupling new development from legacy infrastructure, the organization will reduce technical debt by 40%, improve system stability for 10,000+ active users, and decrease evaluation process bias by 60% through enhanced transparency features. This approach preserves $500K+ in development investment while positioning the platform for market expansion.

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