Modernize your systems. Preserve your business rules.
CORE Migration helps organizations modernize IBM i, COBOL, PowerHouse and other legacy systems while preserving the business logic that keeps operations running.
IBM i · AS/400 · COBOL · PowerHouse · Java · .NET
- 1. Plan Release
- 2. Design Recovery
- 3. Forward Engineering
- 4. Test Release
- 5. Deploy Release
The modernization platform built from CORE Migration experience
CORE OneTool brings together design recovery, repository-driven analysis, forward engineering, automated testing, and modernization workflows in one environment. Built by the team behind CORE Migration, it turns decades of modernization methodology into a unified platform for understanding and transforming legacy systems.
Modernization support from assessment through delivery
CORE combines assessment, automated transformation, repository-driven analysis and structured quality assurance to help organizations modernize complex legacy applications with greater confidence.
AI-Guided Legacy System Assessment
AI analyzes legacy applications to identify complexity, hidden dependencies, and modernization risks before engineering begins. Our repository-driven approach delivers a clear roadmap, predictable timelines, and reduced project uncertainty. Reducing risk through intelligent AI-driven modernization.
Transforming Legacy Systems
We combine automated code transformation with AI-powered pattern recognition to accelerate modernization while preserving application behavior. AI identifies refactoring opportunities, validates structural equivalence, and helps deliver accurate, maintainable, production-ready systems.
Repository Driven Modernization
Critical business logic often lives only inside legacy programs. Our platform uses parsing technology plus AI interpretation to extract calculations, validations, and decision logic into human-readable documentation. This ensures no hidden dependencies are missed during transition, providing a clear roadmap.
Modernization CI/CD Pipeline
Quality is the final gate in modernization. AI generates additional edge-case tests, compares legacy versus modern outputs, and identifies behavioral deviations across large datasets. Combined with our structured QA process, clients gain measurable proof that the new system behaves exactly.
Automated modernization technology built for mission-critical systems
At the heart of your organization is a mission-critical core software application built using legacy applications, such as COBOL, PowerBuilder, Progress, PowerHouse 4GL, Speedware, Visual Basic and others. It is the essence of your business. Its thousands and sometimes millions of lines of custom code contain core business knowledge that meets your business needs and requirements. It is deeply integrated with other systems and relied upon by scores of end users.
Its thousands and sometimes millions of lines of custom code contain core business knowledge that meets your business needs and requirements. It is deeply integrated with other systems and relied upon by scores of end users. The CORE Migration Method provides a proven framework for moving complex, mission-critical legacy applications onto modern platforms with confidence.
With its integrated toolsets, including the Design Preservation Toolkit, the CORE Repository and the Forward Engineering Toolkit, the method automates much of the transition to cloud environments and modern architectures such as Java and .NET API services. This reduces manual effort, minimizes the risk of errors, and helps preserve the integrity of existing systems throughout transformation.
At the center of the CORE Migration Method is the CORE Migration Technology. This is a comprehensive set of proven automation and AI assisted tools designed to take the risk out of legacy system modernization.
The CORE Migration Method brings together Proven Processes, Advanced Technology, and Expert People.
The CORE Migration Method combines a well-defined, systematic and repeatable set of procedures, precision-built software toolkits, and a skilled team of professionals. The method streamlines every stage of the modernization journey.
The CORE Migration Technology is comprised of the following 3 main components:
1. Design Preservation Toolkit
A series of high-speed parsers that scans the legacy system data definitions and source code and creates the intermediary API files that are loaded into the repository.
2. The CORE Repository
An object-oriented relational database and library of Application Programming Interfaces (API) that validate incoming data and ensure the recovered application is consistently represented and stored in the form of objects, methods and business rules that make up the underlying application.
3. The Forward Engineering Toolkit
An integrated application development toolkit that uses the information in the repository to perform an assortment of tasks including re-documentation, application and data definition navigation, impact analysis as well as forward engineering to various target environments. The target application development environments and technologies currently generated by the tool include Java and Microsoft .NET 100% code. The target database environments include Oracle, SQL Server and DB2 and Informix (from Image, RMS, C-ISAM, Rdb, Eloquence, etc.).
Process, technology, and expertise working together
CORE Migration combines repeatable modernization procedures, specialized automation technology, and experienced legacy modernization professionals to reduce project risk and accelerate delivery.
Each Project Follows Systematic Modernization Processes
CORE Migration follows a systematic process that ensures a predictable, high quality result. From start to finish, CORE Migration procedures provide clear deliverables, rigorous quality assurance, and ongoing consultation with you and your team.
We use Advanced CORE Migration Technology to Accelerate the Modernization Process
The CORE Migration method relies on a workbench of proven, specialized software tools that are precision-engineered to accelerate the modernization process and eliminate many labor-intensive tasks.
Supported by a Team of Legacy Modernization Experts
Our team of experienced legacy modernization experts works with you to modernize your legacy application. We are committed to your success, and pride ourselves on being problem solvers who can be depended upon to come up with practical solutions.
The Benefits of the CORE Migration Method
When you modernize with us, you gain these key benefits:
Full functionality replication
CMM ensures your applications deliver the same functionality, just faster and more efficiently and on the cloud.
Maintain Productivity
CMM allows organizations to mitigate business transition disruption while preserving your legacy assets.
Better ROI
CMM produces faster modernization results and lower go-live and ongoing support costs.
Reduced Risk
By leveraging CMM, and its AI driven QA process, customers realize quicker time-to-market results with minimal disruption.
Increased Revenue
Boost Bottom Line Performance: By freeing up resources, scale operational efficiency and unlocking new opportunities.
Your Legacy Modernization Options
We offer two modernization approaches: CORE-Directed and SELF-Directed, each backed by our experienced team.
CORE-Directed
Our team handles the entire modernization process, ensuring a smooth and efficient transition. We manage everything, with ongoing collaboration to keep you informed. This diagram outlines our team’s responsibilities alongside yours.
SELF-Directed
If you want to take the lead, we provide support through planning and training to help your team manage the modernization process. This diagram outlines how the responsibilities are shared between us and your team.
Legacy modernization from assessment through delivery
Our end-to-end services include legacy modernization and business rules extraction. We empower clients to seamlessly transition from outdated technology to advanced, agile platforms.
What our clients are saying
Our clients value the impact of our services and the collaborative approach we take to address their unique needs. Here are some of their thoughts on working with us:
“Their commitment to quality and attention to detail made all the difference. We felt confident and supported throughout the entire modernization process.”
Technology partners
At CORE, we collaborate with leading technology partners to deliver innovative solutions that meet the evolving needs of our clients. Our partnerships with these industry leaders enhance our ability to modernize legacy systems and develop agile applications.
Access expert insights
Explore our in-depth resources on the latest in legacy modernization. Request a whitepaper to learn more about CORE’s advanced methodologies and case studies.
Experience that understands legacy systems
A trusted leader in application modernization, CORE brings decades of experience and innovative solutions to help organizations revitalize their legacy systems.
Let’s modernize your legacy systems without losing what makes them work.
Preserve your business rules, reduce modernization risk, and move toward maintainable modern platforms with a proven delivery method.