IBM Mainframe Modernization & Migration Services
Unlock the Power of Your Legacy Systems — Modernize with Confidence
Transform Your IBM Mainframe for the Cloud Era
For decades, IBM Mainframes have powered mission-critical enterprise workloads.
But the reality is clear: skills are shrinking, maintenance costs are rising, and the pace of digital innovation demands modern, flexible architectures.
Digital Strategy Group helps organizations modernize IBM Mainframe applications, data, and infrastructure using proven automation, risk-free methods, and measurable business outcomes.
We preserve your investment in trusted systems while enabling cloud agility, analytics, and cost savings.
Why Modernize Your Mainframe Now
- Reduce Cost: Lower annual mainframe MIPS and licensing spend by up to 70%.
- Eliminate Skill Risk: Move to modern, maintainable code and databases.
- Enable Agility: Integrate with DevOps, APIs, and CI/CD pipelines.
- Enhance Reliability: Achieve cloud-based resilience and performance.
- Accelerate Innovation: Unlock mainframe data for digital channels and analytics.
Our Modernization Approaches
| Approach | What It Delivers |
| Rehost | Move COBOL, JCL, and VSAM workloads unchanged to Micro Focus Enterprise Server or AWS Mainframe Modernization (Rehost). |
| Refactor | Automatically transform COBOL, PL/I, CA Telon, or Easytrieve into modern Java or C# applications. |
| Replatform | Convert legacy databases (Datacom, IDMS, VSAM) to relational systems such as Db2, SQL Server, or Oracle. |
| Replace / Retire | Decommission redundant legacy systems or replace with SaaS/cloud equivalents. |
| Hybrid Integration | Expose mainframe functions through REST APIs, event streams, and cloud connectors. |
What We Modernize
- Applications: COBOL, PL/I, Easytrieve, CA Telon, Natural
- Batch Workloads: JCL, Scheduler, SORT, IDCAMS utilities
- Databases: Datacom → Db2 / SQL Server / Oracle / PostgreSQL
- Online Systems: CICS, IMS/DC → Web Services or Java APIs
- Files & Data: VSAM → Relational Tables or Cloud Storage
Our Proven Methodology
- Assessment & Inventory
Automated discovery of all COBOL, PL/I, and JCL components using Digital Strategy Group’s toolset. - Strategy & Design
Define modernization roadmap, cost models, and target architecture. - Migration & Conversion
Automated code, data, and JCL transformation using Micro Focus and AWS frameworks. - Testing & Validation
Golden Dataset Reconciliation, Parity Testing, and Failure Drills ensure identical results and operational stability. - Cutover & Optimization
Transition to production with full performance tuning and DevOps integration.
Tools & Technologies
- Platforms: IBM z/OS, Db2, CICS, VSAM, JCL
- Modernization Engines: Micro Focus Enterprise Server, Enterprise Developer, Enterprise Analyzer
- Cloud Frameworks: AWS Mainframe Modernization (Rehost + Refactor), Azure, Google Cloud
- Languages: COBOL → Java / C# / .NET / Spring Boot
- Databases: SQL Server, Oracle, PostgreSQL, Aurora
- DevOps: Jenkins, GitHub, Azure DevOps, Kubernetes, Docker
Business Outcomes
| Benefit | Impact |
| Cost Reduction | 50–70 % lower run costs and hardware savings. |
| Agility | Enable continuous integration and rapid deployment. |
| Performance | Scalable cloud infrastructure and optimized batch processing. |
| Governance | Improved visibility, traceability, and audit controls. |
| Sustainability | Reduced power consumption and data-center footprint. |
Why Choose Digital Strategy Group
- 25 + years of mainframe modernization expertise
- Automated assessment and conversion toolsets (“LegacyM”, “LegacyD”)
- Certified partners with IBM, Micro Focus, and AWS
- Proven track record of enterprise-scale modernization success
- U.S.-based consultants with global delivery support
“DSG delivered a 100 % parity match between the legacy Datacom system and the new Db2 environment — on time and under budget.”
— CIO, County of Marin
Get Started
Ready to modernize your IBM Mainframe?
Let’s design a low-risk modernization roadmap that preserves your business logic and accelerates digital transformation.
📞 Schedule your Mainframe Modernization Assessment
📧 mtarr@digitalstrategy.us | 🌐 www.digitalstrategy.us
Transform your application to Java or .Net and Re-platforming to an X86 environment. Let us help you cloud enable your legacy applications. Still want COBOL? Many solutions allow you to keep your source code in COBOL and deploy a JAVA or .NET runtime. We can design a step by step migration plan that mitigates risk while delivering short-term benefits almost immediately.
We provide support for all areas of the IBM mainframe. Want someone to look at monthly cost and your Peak Four Hour Rolling Average MSU’s? Let us provide additional support for application development, system upgrades, temporary staff outages or accelerating your IT initiatives.
ON-GOING SUPPORT.
What makes a technology support services expert? Proven experience solving client problems involving multi-vendor IT support and IBM hardware and software support.