IIB to ACE, without stopping the business.
Hundreds of flows, years of undocumented logic, and a platform past its support window. We migrate IBM Integration Bus estates to App Connect Enterprise in waves — assessed, categorized, parallel-run — while the business keeps running on top.
From WMB · IIB 9/10 → ACE · containers · CI/CD
The estate that "just works" is quietly accumulating risk.
IIB support has ended, skills are retiring faster than the flows are, and every integration you defer makes the eventual move bigger. Meanwhile ACE brings what IIB never had: container-native runtimes, modern CI/CD, and a straight path into Cloud Pak for Integration. The question isn't whether to migrate — it's whether to migrate deliberately or under pressure.
It's never the happy-path flows.
We've inherited enough stalled migrations to know where they break:
- Flows nobody documented, written by people who left
- Shared libraries with a decade of entangled dependencies
- ESQL edge cases that behave differently on ACE
- Hidden MQ dependencies that only surface at cutover
- Big-bang cutover plans with no parallel-run safety net
- Testing done by hand, so every wave costs the same as the first
Waves, not big bangs.
Why waves? We wrote up the reasoning: Why big-bang integration migrations fail.
Inventory & assess
Automated scan of the estate: every flow, node type, shared library and dependency, scored for migration complexity.
Categorize
Lift-and-shift what's clean, refactor what earns it, retire what nothing calls anymore. Every flow gets a verdict and an estimate.
Migrate in waves
Wave-by-wave delivery with parallel run and automated regression against recorded traffic — so cutover is a decision, not a gamble.
Modernize
Land on ACE the right way: containerized runtimes, CI/CD pipelines, standardized logging and monitoring from day one.
Deliverables, not decks.
- Complete flow inventory with complexity scoring
- Wave plan with effort estimates per flow
- Migrated flows, regression-tested against real traffic
- CI/CD and observability set up as part of delivery
- Standards from our integration framework applied throughout
- Runbooks and handover your team can actually operate
Start with the assessment.
A fixed-scope estate assessment: inventory, complexity map, wave plan. Then you decide.
Talk about your estate →