Recover the business knowledge
Review available code, databases, documentation and workflows to identify essential functionality, dependencies and the rules people rely on.
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Legacy System Modernisation
Move beyond ageing software without losing what makes it valuable.
ChatFox helps replace difficult-to-maintain, expensive or restrictive applications with modern software built around your current needs. We use AI-assisted analysis and bespoke development to understand the existing system, preserve essential behaviour and plan the transition.
Discuss your requirementsThe scope of the work
Understand the existing system before rebuilding it.
Design a better replacement
Recreate the behaviour that matters in a maintainable architecture, improving usability and removing limitations that no longer serve the business.
Prepare the data and connections
Assess information quality, clean and map records, plan migration and connect the new application to the systems it needs.
Introduce useful AI capabilities
Add natural-language search, intelligent imports, reporting, document generation or automation where they support the work.
An example of how it could work
Replace an operational application in manageable stages
An older application holds customer records, specialist calculations and years of workflow decisions. We map those dependencies with its users, recreate the essential behaviour and compare results using representative records. The replacement is introduced in agreed stages, with data checks and a clear route for users to move across.
Illustrative example, rather than a client case study.- Assess functionality and dependencies
- Agree the replacement design
- Validate behaviour and migrated data
- Introduce the system and support users
Planning the transition
A migration approach that reflects
how much the system matters.
The route to a replacement depends on the application’s complexity and the work it supports. Phased migration or parallel operation can give your team time to validate the new system before the old one is retired.
- Agree what readiness meansDefine the workflows, data checks and user acceptance needed before a transition.
- Introduce the replacement at a practical pacePlan the sequence, dependencies and continuity arrangements around daily operations.
- Prepare the people using itProvide guidance, onboarding and support as users move to the new application.
Preserve essential behaviour through evidence and testing
We use the existing application as a source of requirements, then confirm what must be retained with your team. AI-assisted findings are reviewed, critical business rules are tested and migrated data is checked against the agreed requirements.
Data and securityManage the transition as part of the project
ChatFox covers assessment, architecture, development, data preparation, integration and testing. We also plan onboarding and delivery, with ongoing maintenance and development from the team that built the replacement.
Our managed serviceWhen this can be a good fit
Useful when support is scarce or costly, changes are difficult, integrations are limited or the interface forces staff into workarounds. The starting assessment considers available source material, dependencies and the importance of the system to daily operations.
A useful starting point
Bring the application’s main tasks, known limitations and any available code, documentation or data samples. We’ll establish what can be assessed and what needs further discovery before agreeing the scope.
Connected through ChatFox
Approved tools, with access
defined for the work.
Where useful, the modernised application connects through the ChatFox AI Control Layer. Approved capabilities become reusable tools for assistants, automated processes and other authorised clients, with centrally managed permissions.
How the AI Control Layer worksFor technical teams
AI-assisted application modernisation covers system discovery, code and dependency analysis, business-rule extraction, target architecture, bespoke redevelopment, migration and integration. Essential behaviour is recreated and tested in a modern architecture rather than relying on line-by-line code translation. Approved capabilities can be exposed through the ChatFox AI Control Layer where required.
Get in touch
Tell us what you need
your business to do better.
You don’t need a technical specification. Tell us about the process, problem or opportunity, and we’ll help define the right solution.