AI-Assisted Modernisation

    Most companies talk about AI-assisted delivery without explaining what the AI is doing in practice. On this page we show where AI saves time and cost, which tools we use, and when and why we don't use AI.

    How we use AI

    A clear breakdown of what AI does on a modernisation project, what it doesn't, and how that shapes the price you pay.

    100%Targeted

    Targeted tooling

    Each AI tool earns its place on a defined task in the modernisation process — never as a general-purpose shortcut.

    Faster, broader, cheaper

    Faster documentation, lower analysis cost, broader test coverage — measured against the same work done by hand.

    Architecture
    Senior-led
    Business logic
    Senior-led
    Unreviewed AI
    Never ships

    Human judgement leads

    Architecture, business logic, and delivery risk stay with senior engineers — every time.

    20–40% savings

    Typical savings of 20–40% on tasks where AI fits — passed through to project pricing, not absorbed as margin.

    Up to
    40% saved

    Secure by default

    AI tools run under contract — never on consumer chat interfaces, never feeding model training.

    • API-only, isolated sessions
    • Excluded from model training
    • NDA & agreed protocol

    Where AI helps

    Four tasks where AI-assisted delivery changes the economics of modernisation — with the time savings and review controls that come with each.

    Documenting undocumented codebases

    Many legacy systems carry little or no useful documentation — no current specifications, sparse comments, no record of why design choices were made. We use AI code analysis to turn large volumes of legacy code into structured documentation: functions, dependencies, workflows, and data movement. Work that often takes weeks compresses into days, so scoping happens earlier and with less wasted effort.

    0x

    Faster documentation

    50k-line codebase: 3–5 weeks → 3–5 days

    0%

    Lower assessment cost

    Reflected directly in project pricing

    Extracting business rules from old code

    In older systems, real business rules often live inside the code rather than in a written process document — pricing logic, approval steps, exception handling, edge-case rules. We use LLM-based analysis to surface those rules as readable specifications. Your team reviews them, our engineers review them, and only then do they become the basis for migration planning.

    0x

    Faster scope agreement

    2–4 weeks of discovery → 1–2 weeks

    0%

    Engineer-reviewed

    Every extracted rule is verified before sign-off

    Generating broader test suites

    One of the main risks in legacy modernisation is reaching go-live with shallow test coverage. AI helps us generate an initial suite of test cases from the existing codebase — including edge cases and failure scenarios — broader than a manual first pass. Engineers review every generated test before it is used, so coverage grows without losing control.

    0x

    Faster first suite

    1–3 weeks manual → 1–3 days assisted

    0%

    Wider edge-case reach

    Failure paths a manual pass tends to miss

    Accelerating translation from legacy languages

    Some legacy systems still rely on languages that are expensive to hire for and difficult to maintain — VB6, Classic ASP, older Delphi, FoxPro. We use tools such as Amazon Q Code Transformation and GitHub Copilot to accelerate translation into modern languages and frameworks, so engineers focus on review, architecture, and risk control instead of repetitive rewriting.

    0x

    Faster translation

    4–8 weeks → 1–2 weeks for typical modules

    0%

    Engineer time redirected

    Spent on review and risk control instead

    Your project doesn't start from an empty repository.

    A conventional rebuild often spends the first three to six months on infrastructure, deployment, access control, and setup before the client sees business value. We start from a proven application foundation, so more of the budget goes into the workflows, rules, and integrations that make the system specific to your business.

    FoundationIncluded
    Internationalisation & localisation
    Responsive desktop & mobile layouts
    Test data and demo data
    Pre-configured CI/CD pipeline
    Authentication & role-based access
    Audit logging
    Dev, staging, and production environments
    Modern security baseline

    Security and data handling

    If AI tools are going to touch your codebase, the rules need to be clear before any work begins.

    API-only, isolated sessions

    Code is submitted via API in isolated sessions. We do not use shared consumer-facing AI interfaces for project work.

    Excluded from model training

    Data-processing agreements are in place. Your code is contractually excluded from model training data.

    Minimum data exposure

    Where possible, analysis uses anonymised samples or structural analysis rather than unnecessary exposure of full business data.

    NDA & agreed protocol

    NDA and confidentiality terms apply across the engagement. The data handling protocol is agreed before AI tools are applied.

    We tell you in advance which tools will be used, what data they will process, and what controls apply. You can request changes to that approach before work starts.

    The tools we actually use.

    A short stack — each tool earns its place on a specific task.

    Microsoft / GitHub

    GitHub Copilot

    01

    Code completion, refactoring suggestions, and support during translation from older language versions into modern stacks. Part of active engineering work, not an automated replacement for judgement.

    AWS

    Amazon Q Code Transformation

    02

    Structured code migration where an initial transformation plan is useful before engineers review and refine the result. Supports migration; does not determine the architecture.

    GPT-5.5 and Claude via API

    LLM-based code analysis

    03

    Documentation generation, business rule extraction, and data schema analysis. Code is submitted through controlled API workflows rather than consumer chat interfaces.

    Task-dependent

    AI-assisted test generation

    04

    Generates an initial test suite from existing code. Every generated test is reviewed by an engineer before use in the project.

    Where AI does not help

    AI is useful for repetitive, pattern-based, large-scale work. It is weak where the work depends on commercial judgement, architectural trade-offs, and accountability for delivery.

    Architectural decisions in complex systems

    If billing, reporting, inventory, and approval logic share state in undocumented ways, AI can support analysis and translation — it cannot decide how that estate should be reshaped safely.

    Business decisions inside the modernisation programme

    When a migration changes how the business operates, those decisions belong in structured discussion between your team and ours — not inside an AI prompt.

    QA, sign-off, planning, risk, and client communication

    Every AI-generated output is reviewed by a senior engineer. Project direction remains human-led throughout. Nothing ships unexamined.

    A note of caution. A 2025 S&P Global finding reported that 42% of companies had abandoned most AI initiatives, up from 17% — citing data quality, system readiness, and integration failures. Our response is simple: every AI task has a review step, and nothing ships unexamined.

    Frequently asked questions

    The questions buyers ask before signing off on AI-assisted work.

    Do you build everything from scratch using AI?
    No. Each project starts from a pre-built application foundation that already includes authentication, responsive design, CI/CD, and internationalisation. AI is used in defined phases to understand the current system faster and improve test coverage; the unique business logic is engineered and reviewed by the senior team.
    Is my code safe when AI tools are used?
    Yes. Code is submitted via API in isolated sessions under data-processing agreements that exclude it from model training. We sign an NDA before work begins and agree the data handling protocol before any AI tools are applied.
    Which AI tools do you use?
    GitHub Copilot, Amazon Q Code Transformation, and LLM-based code analysis through GPT-5.5 and Claude APIs. We also use AI-assisted test generation where the task suits it, and every generated output is reviewed by an engineer before use.
    How much cheaper is AI-assisted modernisation?
    On the tasks where AI fits well, savings are typically 20–40%. In practice, that shows up as lower assessment cost, quicker scoping, faster translation work, and broader test coverage for the same budget.
    What if I do not want AI used on my project?
    That is fine. AI assistance is optional. The same quality can be delivered with traditional engineering methods, though the work may take longer and cost more. We can discuss the trade-off during the discovery call.
    How do I get started?
    Book a free 30-minute discovery call. We will discuss your current systems, explain the practical options, and recommend the next step — whether that is a Health Check, a scoping exercise, or direct modernisation.

    See how AI-assisted modernisation would work for your systems.

    A free 30-minute discovery call. We walk through your situation, explain what AI can and cannot help with, and give you a direct assessment of the options in front of you.