Legacy System Modernisation in Glasgow

Refactoring improves code structure and maintainability within your existing platform. Migration moves your system to a new platform, language, or architecture. Often you do both. For example, you might migrate from on-premise to AWS while refactoring a monolith into microservices. We assess your codebase and business goals first, then recommend the right approach.

Data validation happens at every step. We extract data from your legacy system, transform it according to new schema rules, and test it in parallel. Cutover only happens when both systems have been reconciled and spot-checked. We also run shadow traffic through the new system for a period, so you catch issues before going live. Your data integrity is non-negotiable.

Yes, in most cases. We use techniques like database replication, API forwarding, and canary deployments to move users gradually from old to new infrastructure. Some systems require a brief maintenance window, but modern architectures let you minimize that. We plan the cutover so it happens during your lowest-traffic period and with a clear rollback plan if needed.

You do. The code, architecture, and deployment pipelines belong to you. We document everything so your in-house team can maintain it. You're not locked into a dependency on Evolved Ideas. We do offer post-launch support and retainers if you want a partner for ongoing development, but ownership and autonomy are yours from day one.

It depends on system size, complexity, and your risk tolerance. A small monolith might take 4-6 months. A large, interconnected legacy estate could take 12-18 months. We break work into phases with clear milestones and deliverables. You can ship parts of the modernised system early and retire legacy modules incrementally, so you don't wait for everything to be perfect before seeing value.

That's a common question. We audit your system, look at the cost of keeping it versus rebuilding, and consider your team's skill set and capacity. Sometimes modernisation makes sense. Sometimes a phased replacement is smarter. We give you a clear assessment and recommendation so you can make the call with confidence.