HMx Labs worked with the client to create a more connected and evidence-based cloud migration planning capability using Waltz. Rather than treating migration as a simple technical move, the work focused on understanding the broader architecture context around each application; its dependencies, business criticality, technical condition, ownership, and regulatory constraints.

• Build a clearer inventory of the application portfolio
• Map dependencies across applications, services, and data flows
• Assess cloud readiness across business, technical, and operational criteria
• Identify migration candidates, blockers, and low ROI applications
• Group applications by likely migration strategy and complexity
• Align business, architecture, engineering, and governance stakeholders
• Create a prioritised migration roadmap and sequencing plan
• Support post-migration audit and compliance validation

This allowed the organisation to move from broad cloud ambition to a more practical and defensible migration strategy.

Using Waltz, HMx Labs helped create a connected decision-making model for cloud migration across the entire application portfolio.

Portfolio-Wide Cloud Readiness Assessment

The client gained a structured view of cloud readiness across its application estate. Applications could be evaluated not just on technical criteria, but also on business importance, lifecycle position, cost profile, operational criticality, and regulatory sensitivity. This helped distinguish between strong migration candidates, applications requiring redesign or remediation, systems better suited for replacement or retirement, and those that should remain in place for the time being.

Dependency-Aware Migration Planning

One of the biggest barriers to cloud migration is hidden interdependence. Waltz helped the client map upstream and downstream relationships across the estate, making it easier to see which systems could move independently and which required coordinated sequencing. This improved migration wave design, change planning, impact analysis, and risk identification before execution.

Migration Strategy by Application Type

Not all applications warranted the same treatment. HMx Labs used the connected application view to support differentiated migration decisions; helping the client identify where rehosting, replatforming, refactoring, replacement, retention, or retirement made the most sense. Resources could then be focused where cloud migration would deliver the greatest value.

Stakeholder Alignment Around a Common Roadmap

Waltz gave architecture, engineering, business owners, and governance teams a shared picture of the estate. This reduced debate driven by incomplete information and made it easier to align around migration priorities, sequencing, and target-state assumptions. Instead of relying on fragmented spreadsheets and local knowledge, stakeholders could work from a consistent model of the portfolio.

Post-Migration Audit and Jurisdictional Assurance

For the client, migration planning did not end at go-live. It was equally important to demonstrate that application data had been migrated into the correct jurisdictional landing zones in line with country-specific regulatory and policy requirements. HMx Labs used Waltz to support post-migration assurance by helping the organisation:

• Trace which applications and data flows were associated with specific jurisdictions
• Map target hosting and landing-zone decisions against regulatory requirements
• Validate that applications had been deployed into the intended compliant environments
• Support auditability and evidence gathering for post-migration review

This strengthened confidence that cloud adoption had not only been executed efficiently, but also governed correctly.

By creating a clearer view of applications, dependencies, readiness, and jurisdictional constraints, the client was able to approach cloud migration with much greater confidence.

• Faster prioritisation across a large and diverse application estate
• Clearer identification of migration candidates, blockers, and retirement opportunities
• Better sequencing of migration waves based on real dependencies
• Reduced risk of disruption caused by hidden interconnections
• Stronger alignment between business, architecture, engineering, and governance teams
• More cost-effective migration planning and investment focus
• Improved ability to validate post-migration compliance with jurisdictional landing-zone requirements

Most importantly, the cloud programme became more than a technology initiative. It became a governed transformation effort — grounded in data, architecture context, and practical decision support.