Dependency mapping
Application, data, identity, and network links documented with confidence levels before waves are locked.
Migration failures usually trace back to sequencing: the wrong workload moved first, a dependency missed, or a cutover window chosen without a tested rollback. We plan migrations as operational events, not infrastructure projects.
Wave design
Groups aligned to business tolerance for downtime and technical readiness — not vendor convenience.
Cutover governance
Runbooks, communication trees, validation scripts, and fallback triggers agreed before change windows open.
Post-wave stabilisation
Enhanced monitoring and hypercare period so issues surface before the next wave starts.
We support rehost, replatform, and selective modernisation. The approach is chosen per workload based on risk, cost, and the skills your team will need to operate the target state.
Migration programs fail when cutover criteria are vague or dependencies are discovered during the outage window. We invest heavily in pre-migration validation — dress rehearsals, timed rollbacks, and feed reconciliation — before production moves.
Wave design balances business continuity with team capacity. We avoid big-bang cutovers unless the architecture truly requires it, and we document shared-fate risks when workloads move together.
“Two full dress rehearsals felt expensive until the real cutover completed in 3h 42m with zero unplanned rollback. That preparation was the difference.”
Frequently Asked Questions
What migration approaches do you support?
Rehost, replatform, and selective refactor — chosen per workload based on business criticality, technical debt, and exit timeline. We do not default to lift-and-shift.
How do you assess migration readiness?
Readiness covers application architecture, data gravity, licensing, operational runbooks, monitoring, and rollback capability — scored per workload before wave assignment.
Can you migrate during restricted change windows?
Yes. We design waves around your blackout periods and build rollback paths that fit within agreed outage budgets.
How do you handle data migration and sync?
Strategy depends on RPO/RTO: bulk transfer, incremental sync, or dual-write periods. Cutover includes reconciliation checks signed by application owners.
What role does your team play during cutover?
We staff a command centre with clear RACI: our leads coordinate rollback decisions; your ops team executes runbooks we have validated together.
Do you migrate mainframe or legacy middleware?
We specialise in distributed and cloud-native estates. Legacy middleware exits are in scope when integration mapping and parallel running are feasible.