Service
Legacy Modernisation
Transform ageing systems into competitive assets — without the downtime.
Legacy systems are often the most business-critical yet most fragile part of an organisation's technology estate. We modernise them carefully and systematically — migrating to modern architectures, improving performance, reducing maintenance costs, and removing key-person dependencies — all while keeping the lights on.
Legacy Modernisation
Client Satisfaction
98%
Deliverables
What We Deliver
Legacy System Audit
A thorough technical assessment of your existing system — architecture, code quality, dependencies, data model, integration points, and risk profile.
Modernisation Roadmap
A phased, prioritised plan for modernisation with business case, risk analysis, and timeline for each phase.
Modernised Application
The reimplemented or refactored system running on modern infrastructure with improved performance, security, and maintainability.
Data Migration
Validated, complete data migration with reconciliation reports confirming data integrity before and after the cutover.
Parallel Running & Cutover Plan
A tested parallel-running strategy and detailed cutover plan ensuring the transition carries no operational risk.
Methodology
How We Work
System Archaeology
We deep-dive into your legacy system — reading code, running the application, and interviewing the people who built and maintain it — to build complete understanding.
Modernisation Strategy
We evaluate options (rewrite, refactor, re-platform, replace) against your constraints and produce a costed strategy with risk analysis for each path.
Strangler Fig Migration
We migrate functionality incrementally using the Strangler Fig pattern — replacing pieces of the old system with new components while keeping the system operational.
Cutover & Decommission
When the new system is proven in parallel, we execute the cutover with a tested rollback plan, then decommission the legacy system safely.
Stack
Technologies We Use
Use Cases
Industry Applications
We've delivered this service across every major industry sector in Africa and globally.
Banking
COBOL-to-Java core banking system modernisation for a cooperative bank, reducing batch processing time from 8 hours to 12 minutes.
Government
Legacy Oracle Forms application re-platformed to a React/Node.js web application with zero data loss and zero downtime cutover.
Insurance
Monolithic claims system decomposed into microservices, reducing deployment time from 4 hours to 15 minutes and enabling daily releases.
Manufacturing
Windows XP-era production planning system migrated to a cloud-native application, unlocking remote access and modern analytics.
Why Us
Why choose Elom Labs for Legacy Modernisation?
We have completed 20+ legacy modernisation projects without a single data loss incident — our migration methodology is thoroughly proven.
We never advocate a full rewrite unless it is genuinely the lowest-risk option. Incremental migration protects business continuity.
We document the legacy system thoroughly during our audit, creating institutional knowledge that survives the modernisation process.
FAQ
Common Questions
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