AveriSource Reimagine
Accelerating and de-risking legacy rebuilds by combining proven deterministic analysis to extract and document business rules with verified accuracy and traceability, and AI to transform them into fit-for-purpose deliverables.
Accelerate a Rebuild of
Business Differentiated Functionality
AveriSource extends its proven modernization Platform beyond a proven Refactor and Replatform to support Reimagine. Where Refactor and Replatform convert or preserve legacy source code, Reimagine builds modern code leveraging business rules, data structures, and functional logic. AveriSource delivers fit-for-purpose structured Business Function Specs that power automated forward engineering into clean, best-practice modern code. The result is a modernized application free of legacy technical debt in an optimized architecture.
Rebuild for What's Next
- Reimagine is a natural complement to Refactor and Replatform within a hybrid modernization strategy
- All analysis is deterministic. Business rules and functional specs are grounded in verified technical findings, not AI inference
- Business Function Specs are organized around business functions not legacy programs - crossing program, language, and execution mode boundaries as required
Reimagine
What is it?
Unlike with Refactor and Replatform approaches which produce functionally equivalent code, Reimagine produces new code structured for a fit-for-purpose architecture, ensuring existing technical debt isn't carried forward. Reimagine focus is on verified business rules, data structures, and functional logic which is distilled, documented, and delivered in a form ready for modern development.
Use the AveriSource Platform to extract Business Function Specs from legacy applications, organizing findings around business functions not legacy programs. A single business function may span multiple programs, languages, and execution modes (e.g., batch, online, API). Those specs are then used by the client or a delivery partner with automated forward engineering tools such as Claude Code or similar, to build a modernized application in best-practice modern language and architectures.
When to select
Reimagine is the right choice when the goal is not just a legacy platform exit but a genuine architectural reset. It is best suited to environments where legacy technical debt is significant; where the existing code structure no longer reflects business reality; or where the target architecture. such as microservices or cloud-native services, cannot be efficiently reached through incremental refactoring alone. Common drivers include the need to eliminate legacy language dependencies, a desire to adopt modern development practices, and the availability of automated forward engineering tooling to accelerate delivery.
Business outcomes
Deliver best-practice Java or C#.NET code organized around business functions, free of legacy technical debt and ready to refactor into a fit-for-purpose architecture such as microservices. Preserve proven business logic and data structures while eliminating the structural constraints of the legacy estate.
Support for true Hybrid Modernization
Redefining three proven modernization approaches with a single Platform.
- Replatform and retain COBOL, Refactor to Java or C#, or Reimagine as best-practice modern code
- Combine approaches progressively across the application portfolio
- Optimize strategy to align with business priorities, resource skill sets, and timeline
Solution Benefits
- Eliminates legacy technical debt by including only what's relevant to the business into forward engineering inputs
- Enables automated code generation using tools like Amazon Q, GitHub Copilot, and Claude Code, accelerating delivery
- Flexible delivery model supports client-led, partner-led, or AveriSource-assisted forward engineering
AveriSource MicroTracing™
- With Reimagine, legacy programs and job boundaries are artificial. The unit of work is a business function in the context of a business process. A function’s implementation can span programs, traversing between online and batch components.
- AveriSource's patented MicroTracing™ technology and approach combines deterministic automated code analysis with generative GenAI to precisely isolate the code blocks implementing each business function and accessing relevant data sets.
- By analyzing legacy code down to individual statements and variables, and integrating GenAI to pinpoint candidate functions, MicroTracing shifts the focus from traditional program boundaries to business processes, enabling a more accurate and effective modernization strategy tailored to specific use cases.
Business Rules Extraction and
Business Function Spec Generation
Organized around Business Functions, not Legacy Programs
The AveriSource Platform extracts business rules and generates Business Function Specs based on business functions — logical units of business behavior that may span multiple legacy programs, languages, and execution modes. This is a critical distinction: the legacy code structure is the starting point for analysis, not the organizing principle for output. A business function that executes partly in batch COBOL, partly in a CICS online program, and partly through a called subprogram is documented as a single coherent specification.
Deterministic Foundations
Every business rule and every element of a Business Function Spec is traceable to a deterministically identified technical rule extracted from source code. There is no inference, no summarization from raw code, and no AI-generated interpretation of program logic. AI is applied downstream to render verified technical findings in natural language, generate business-meaningful names, and produce readable documentation, but the analytical foundation is always deterministic.
What a Business Function Spec contains
- Verified business rules extracted from legacy source, organized by function
- Data structures and data relationships relevant to the function
- Execution context — batch, online, API and cross-program call paths
- Preconditions, postconditions, and exception handling behavior derived from legacy logic
- Natural language narrative generated from deterministic findings, ready for use as forward engineering input
Business Outcomes
Deliver structured, business-function-oriented specifications that serve as the authoritative input for automated forward engineering; enabling development teams and tools to build modern applications with confidence that all verified business logic is captured, traceable, and complete.