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Mainframe Modernization Solution Enables Retailer to Realize Annual Operating Savings of more than $2 Million

What we achieved together


annual operating savings


batch performance increase


to test & deliver successful application conversion

The Client

The client is a $5 billion publicly traded health and wellness retailer.​ 

The Obstacles Faced

The client needed additional capacity on an aging mainframe infrastructure to run its retail supply chain, distribution logistics, stock control and pricing. License fees were consuming a large portion of the IT budget. This successful retail client sought a new IT infrastructure that was ready to take on the future. The goal was to reduce licensing costs while migrating to a new, more capable and flexible platform without interrupting business or losing any of the key functions of existing applications. The client needed the project completed in 18 months.​

The Journey

Ensono assessed the applications and data environment and designed a migration plan to a Microsoft platform using NetCOBOL for .NET as the target application language and SQL Server as the data store. The legacy code was converted using Ensono’s ExperThinkTM and Universal Data ConverterTM at our Tarrytown, NY, center, tested and delivered production-ready within 18 months. The client realized ongoing annual operating savings of more than $2 million.​

Outcomes Achieved

  • Successful application conversion was delivered and tested in 18 months​
  • Realized ongoing annual operating savings of $2+ million including software license reductions​
  • Rapidly recouped investment in modernization project​
  • Batch performance increased and batch window reduced by 30%


  • More than 4,500 COBOL programs​
  • 100 Easytrieve programs​
  • Thousands of JOBs, PROCs and CONTROL CARDS​
  • 800 Db2 tables​
  • 14,000+ flat files​
  • Migration to .NET with SQL Server​

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