Migration

Structured migration with minimal business disruption and controlled risk

Mainframe migration isn't one thing. It's application migration, data migration, platform migration and version migration. It's moving between environments, modernising databases and rehosting workloads – sometimes all within the same programme.

What all of these have in common is the need for a structured approach that keeps the business running, manages risk at every stage and doesn't trade short-term speed for long-term instability.

At Epico, we bring the experience, methodology and deep Mainframe knowledge to plan and execute migrations that deliver on their objectives – without the surprises that derail programmes and erode business confidence.

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Discovery and assessment – understanding what you're moving before you move it

The most common reason Mainframe migrations fail is insufficient understanding of what's actually there. Applications with undocumented dependencies, data with unclear ownership and integrations that only reveal themselves under load – these are the risks that turn a well-intentioned programme into an extended, expensive recovery effort.

We start every migration engagement with thorough discovery and assessment – mapping applications, data flows, dependencies and integration points before a single workload moves. That foundation informs a migration strategy that reflects your actual environment, not an idealised version of it.

The result is a plan you can execute with confidence, built on dependency mapping and risk management from day one.

Controlled execution – rehosting, replatforming and refactoring done right

With a clear migration strategy in place, execution can begin in a controlled, sequenced manner. Depending on what each workload requires, we apply the right approach – rehosting, replatforming or refactoring – rather than defaulting to a single method that doesn't fit every scenario.

Parallel run capabilities allow new and existing environments to operate simultaneously, giving your business confidence that the target environment performs as expected before cutover. Automated migration tooling and automated testing reduce manual effort and human error throughout.

Cutover planning and rollback strategy are defined upfront – so when go-live arrives, every stakeholder knows exactly what happens, in what order, and what the fallback looks like if it's needed.

Validation, decommissioning and closure – completing the migration properly

A migration isn't complete when the new environment goes live. Testing and validation against defined business and technical criteria confirm that what moved is working as intended – not just technically, but operationally, under real conditions.

Once validated, decommissioning of legacy environments can proceed in a structured and documented way – reducing ongoing costs, eliminating technical debt and closing out the programme cleanly.

Throughout every phase, our focus is on minimal downtime and maximum control. Migration should move your organisation forward. With the right structure and the right experience behind it, that's exactly what it does.

Reach out to our Mainframe experts today

With 30+ years of experience, we are among the most experienced Mainframe experts in Scandinavia.
We believe that behind every business succes is a dedicated personal relation.

That's why Patrik and Oscar have sat down with teams handling some of the largest and most complex Mainframe tasks, and helped develop understandings, solutions and progress to ensure business needs. Do you need guidance or help with your next project - reach out now.

Patrik Boman - patrik.boman@dynamant.se
Phone: (+46) 070-335 57 55

Oscar Doyle - oscar.doyle@dynamant.se
Phone: (+46) 070-650 18 31