Software Engineering

Legacy Software Modernisation

Move older business-critical systems towards supported, secure and maintainable technology.

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What we do

We help organisations improve older software while retaining the business knowledge and workflows it contains. The service assesses which components need upgrading, replacing or connecting to newer services. It is particularly relevant when dependencies are unsupported, releases are difficult or a system prevents further product development.

Modernisation can involve upgrading a .NET application, replacing an interface, improving a database, adding APIs or moving selected workloads to a different hosting environment. We plan changes around the integrations and operational routines that depend on the existing system, using stages where that makes continuity easier to manage.

Replace one workflow while the core system keeps running

An older internal application might continue managing core records while a new web portal handles customer requests through an API. Once the new workflow is proven and its data reconciled, further components can be moved. This allows each stage to be evaluated before extending the replacement.

How we deliver this service

We inventory dependencies, inspect code and data, and document critical behaviour. The migration approach includes tests that capture existing business rules, data verification and a rollback plan. A pilot or selected component establishes the approach before broader changes and retirement of replaced parts.

Capabilities

  • Legacy .NET assessments
  • ASP.NET modernisation
  • Database upgrades
  • Cloud migration
  • API enablement
  • UI replacement
  • Incremental migration
  • Technical debt reduction

What we can deliver

  • A legacy assessment and dependency inventory
  • A staged upgrade or replacement roadmap
  • Modernised components and verified data migration where needed
  • Regression evidence, cutover procedures and updated documentation

The final deliverables are agreed around your project and priorities.

Let's discuss Legacy Software Modernisation

Tell us what the current system does well and which technical limitations are making it difficult to keep using.

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