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Discover, Decouple, Optimize, and Digitize Legacy Systems to Next-Generation Systems
Overview
1. Discover: Understand the Legacy Landscape
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Assess all applications for usage, cost, and business value
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Map system dependencies and data flows
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Identify risks and pain points through stakeholder interviews
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Document limitations and opportunities for modernization
✅ Outcome: A clear, risk-aware roadmap for transformation.
2. Decouple: Break Free from the Monolith
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Identify and extract critical services (e.g., authentication, payments)
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Apply the Strangler Fig Pattern to replace legacy features gradually
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Decouple data and introduce APIs or middleware for modern integration
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Start containerizing for cloud compatibility
✅ Outcome: A flexible, modular architecture ready for modernization.
3. Optimize: Improve Before You Move
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Refactor code and modernize infrastructure
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Tune performance and harden security
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Rethink processes for automation and agility
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Lay the groundwork for DevOps and scalability
✅ Outcome: Leaner, faster systems that support modern demands.
4. Digitize: Build the Future
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Develop cloud-native, microservice-based applications
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Redesign user interfaces for today’s digital experience
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Integrate AI/ML and analytics
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Automate CI/CD pipelines and enforce digital governance
✅ Outcome: A scalable, secure, and future-ready digital ecosystem.