Legacy modernization

Modernize around legacy systems without replacing them first.

CXFabric connects to the systems that still run the business, including IBM i, AS/400-style backends, databases, files, terminal-era processes, and internal server integrations.

Add modern APIs, AI access, data workflows, and new interfaces gradually while the legacy system keeps doing the work it already does well.

Plan a modernization path See the approach
IBM i and AS/400 paths API facades AI access to legacy data Gradual migration
Integration specialists planning a modernization approach around existing systems
Modernization bridgeLegacy service remains online
Connected
IBM i / order record ORD-84721STATUS   OPENTOTAL    1,284.00
CX
Modern service response 200 OKcustomer: verifiednextAction: review
Existing system unchangedModern access ready
Expose controlled interfaces Modernize gradually

Modernization without disruption

Keep the core running. Move the boundary over time.

Modernization does not have to begin with replacement. We create a controlled integration layer around the existing system, deliver new interfaces and workflows, then move capabilities only when the evidence supports it.

Existing coreIBM i, database, files, programsKeep stable
CX
Controlled access layerCXFabric workflows
  1. ConnectReach existing functions
  2. ControlValidate and record
  3. TranslateNormalize interfaces
Modern accessAPIs, AI tools, data, new applicationsExpand gradually
Phase 1 / exposePhase 2 / synchronizePhase 3 / retire by evidence
legacy-order-flow.ts
const order = await connectors.ibmI.read({
  library: "ORDERS",
  file: "OPENORD",
  key: input.orderNumber
});

const normalized = mapLegacyOrder(order);
await connectors.crm.upsertCase(normalized);
await ai.tools.summarizeOrderHistory({ order: normalized });

AS/400 and IBM i paths

Use legacy data inside modern workflows.

A customer may already have a backend server integration to an AS/400-style environment. CXFabric can sit closer to that system, use controlled in-memory connections and connectors, normalize the response, and expose it to modern tools.

That means new customer portals, AI assistants, data services, and operational workflows can be built around the legacy system without forcing an immediate replacement.

A decision-led roadmap

Create value first. Replace only with evidence.

Each phase solves a useful business problem while generating the operational evidence needed to decide what should stay, what should move, and what can finally be retired.

  1. 01
    Expose

    Build a controlled modern interface.

    Wrap one high-value legacy function with a reusable API, workflow, or AI tool while the existing program remains unchanged.

    New value now
  2. 02
    Shift

    Move data and decisions around the core.

    Synchronize selected records, add modern workflows, and redirect new interfaces through the CXFabric layer.

    Reduce coupling
  3. 03
    Retire

    Remove paths when usage proves they are no longer needed.

    Use execution history, dependencies, failure evidence, and business ownership to retire capabilities deliberately.

    Evidence based

Legacy modernization

Bring one legacy workflow. We will design the bridge.

Tell us the legacy system, current integration path, data needed, and modern interface you want to expose. We will map the CXFabric runtime, connectors, safeguards, and phased implementation.

Talk to CXFabric View deployment options