Use Case

Post-Merger IT Integration

Mergers and acquisitions remain one of the fastest and most effective ways for companies to grow. But the challenges of bringing companies together have evolved.


Due to technology being intertwined, IT integrations of organizations are one of the biggest roadblocks to overcome during M&A activities. While keeping the day-to-day business running, two sets of capabilities and IT landscapes need to be combined. LeanIX creates the necessary transparency to streamline post-merger integration IT workstreams to realize maximum joint potential.

See it in Action

How it works

The steps to successful integration with LeanIX

Map joint strategy to business capabilities

  • Capture and model Business Capabilities of the acquired organization
  • Map them to existing capabilities and derive a joint Business Capability map
  • Classify Business Capabilities with the Gartner Pace Layer method to align investments and resources

Create an integrated application landscape

  • Create a complete view of all applications from both companies and analyze them by usage and cost metrics
  • Collect feedback from business stakeholders on the functional and technical fit of applications (i.e., application owners)
  • Gain understandings of application integrations and dependencies to evaluate change efforts

Define paths forward for each application

  • Leverage LeanIX reports evaluating the applications by technical fit, functional fit, and lifecycle
  • Align on overall IT merging strategy: e.g., “best of both worlds” vs. “align on major platforms” vs. “the winner takes it all”
  • Apply the TIME model to define if applications should be tolerated (T), invested in (I), migrated (M), or eliminated (E)

Model impacts defining the target architecture

  • Identify successors for elimination and migration candidates
  • Document the future of Applications as impacts and set lifecycle dates accordingly
  • Compare different rationalization scenarios based on the modeled impacts

Build and share the integration roadmap

  • Set up projects to migrate and eliminate applications taking dependencies into account
  • Communicate timelines and impacts to business stakeholders
  • Share the visualization of the integrated Application Landscape at future points in time

Execute and track the integration project

  • Carry out the planned application harmonization
  • Automatically update architecture documentation by executing impacts when projects are completed
  • Track project status and measure stages of completion and savings

Benefits from the LeanIX customer base


Ensure 30% faster workstream ramp-up through swift overviews across the merged IT landscapes


Support two post-merger integrations while continuing IT operations at 100%


Save costs by eliminating 45% of redundant applications within 6 months


Accelerate post-merger integration to realize IT value in 90 days


Reduce incoming technical debts from acquisitions by 35% in one year


Develop application rationalization roadmaps to materialize $1.3M savings


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Use LeanIX to Accelerate Integration Planning

Atlassian has a company goal to realize the IT value of acquisitions in 90 days. By utilizing LeanIX, they achieve this goal by:

  • Mapping the acquired applications and the capabilities they enable
  • Relying on service lifecycle information embedded into LeanIX Fact Sheets
  • Achieving insights from the out-of-the-box Application Landscape heat map and Application Roadmap report

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How LeanIX Supported Post-Merger Integrations at ZF

Hear from ZF Friedrichshafen AG on their experience using LeanIX to integrate WABCO. ZF’s successful post-merger integration will show you:

  • The importance of Business Capabilities for speeding up post-merger integrations
  • How to have a clear overview of your application inventory for a transparent IT landscape
  • The key LeanIX reports you can rely on in your post-merger integration projects.

Related Resources

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LeanIX M&A Survey 2021


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LeanIX M&A Survey: Enterprise Architects - The Secret Heroes of Merger & Acquisition Projects


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Watch this on-demand webinar hosted by The Open Group, where LeanIX shares all the insights from the LeanIX M&A Survey and why EAs play a significant role in M&A.