Accelerate Mainframe Modernization with AWS Transform: From Legacy Code to Modern Applications with Full Traceability

For many enterprises, mainframe systems continue to power mission-critical business processes. However, decades of accumulated code, limited documentation, and tightly coupled architectures often make modernization initiatives slow, expensive, and high risk.

As organizations increasingly adopt cloud technologies and AI-driven innovation, legacy applications can become a significant obstacle to digital transformation. Understanding how these applications work—and preserving their business logic during modernization—is one of the biggest challenges facing IT teams today.

To address this challenge, AWS Transform introduces new AI-powered capabilities that help organizations analyze, understand, and modernize mainframe applications with unprecedented speed and confidence.

As an official Amazon Web Services (AWS) partner, Softprom helps organizations leverage AWS modernization technologies to simplify legacy transformation and accelerate cloud adoption.

Why Traditional Mainframe Modernization Is So Difficult

Mainframe applications often represent decades of business knowledge embedded directly into source code.

Typical modernization projects require teams to:

• analyze thousands of programs and dependencies;
• understand undocumented business logic;
• identify application boundaries;
• map complex database relationships;
• manually write functional specifications before redevelopment can begin.

This discovery phase alone can consume months—or even years—for large enterprise environments.

Although generative AI can assist with code analysis, general-purpose AI tools often struggle with enterprise-scale applications because they typically:

• analyze individual files instead of entire systems;
• lack understanding of business context;
• provide limited traceability between generated requirements and original source code;
• produce outputs that are difficult to validate and audit.

AWS Transform addresses these limitations by combining deterministic application analysis with AI-powered reasoning.

Introducing the Assess and Reimagine Workflows

AWS Transform introduces two complementary workflows that significantly simplify application modernization:

Assess

The Assess workflow analyzes an entire mainframe portfolio to automatically discover logical business functions rather than simply cataloging programs. Instead of organizing applications by technical components, AWS Transform groups them according to business capabilities, helping both technical teams and business stakeholders understand how the application supports organizational processes. This provides a clear foundation for modernization planning.

Reimagine

Once business functions are identified, the Reimagine workflow extracts business logic and automatically generates detailed, technology-independent functional requirements that can be used for rebuilding modern applications. Every generated requirement remains fully traceable back to the original mainframe source code, giving organizations confidence that critical business functionality has been preserved.

Discover Business Functions Automatically

AWS Transform begins by performing comprehensive code and data analysis across the application portfolio.

The platform automatically:

• inventories application assets;
• builds dependency graphs;
• analyzes database usage;
• maps data lineage;
• identifies entry points and execution paths;
• measures code complexity.

Rather than requiring architects to manually study thousands of COBOL programs and JCL jobs, AWS Transform identifies logical business functions directly from application behavior.

Examples may include:

• Customer Management
• Transaction Processing
• User Security
• Billing
• Order Processing

These business functions become natural modernization boundaries that teams can prioritize independently. This approach enables organizations to modernize incrementally instead of attempting risky "big bang" migrations.

AI-Powered Business Rule Extraction

Business rules represent the true value inside legacy applications. AWS Transform uses deterministic static analysis to examine program behavior and identify:

• validation logic;
• calculations;
• decision rules;
• workflows;
• database operations;
• business processes.

Unlike solutions that rely primarily on comments or naming conventions, AWS Transform derives rules directly from executable logic.

Each extracted rule includes:

• natural language descriptions;
• structured acceptance criteria;
• related data flows;
• precise references to the original source code.

This traceability significantly improves trust in AI-generated outputs.

Generate Development-Ready Requirements

After business rules have been extracted, AWS Transform automatically generates comprehensive modernization documentation.

For each selected business capability, the platform creates:

• user stories;
• formal functional requirements;
• acceptance criteria;
• business rules;
• data flow documentation;
• traceability reports;
• program metadata.

Requirements are produced using structured formats that can be directly consumed by developers and AI coding assistants. Because every requirement is linked back to its originating business rule—and ultimately to specific source code lines—teams can verify that no critical functionality has been lost during modernization.

Full Traceability Reduces Modernization Risk

One of the most valuable capabilities introduced by AWS Transform is complete end-to-end traceability.

Every modernization artifact can be tracked across multiple layers:

Mainframe Source Code

↓

Business Rule

↓

Functional Requirement

↓

Modern Application Implementation

This provides a transparent audit trail throughout the modernization lifecycle. Organizations can clearly demonstrate that legacy business logic has been preserved while significantly reducing manual verification effort.

Accelerate Cloud-Native Development

The generated modernization artifacts integrate seamlessly with modern development environments, including AI-powered coding tools such as Kiro. Development teams receive self-contained capability packages containing everything required for implementation, including:

• business requirements;
• data schemas;
• application metadata;
• traceability documentation;
• architectural guidance.

This allows developers to focus on building modern cloud-native applications rather than reverse engineering legacy systems.

Key Benefits of AWS Transform

Organizations adopting AWS Transform can benefit from:

• Faster discovery of business functionality
• AI-assisted analysis of complex legacy applications
• Automatic extraction of business rules
• End-to-end traceability from source code to requirements
• Reduced modernization risk
• Incremental modernization by business capability
• Improved collaboration between business and technical teams
• Faster application redevelopment using modern development tools

How Softprom Can Help

Modernizing enterprise mainframe applications requires more than technology—it demands careful planning, proven methodologies, and cloud expertise. As an official AWS Partner, Softprom helps organizations assess legacy environments, design modernization strategies, and implement AWS-powered transformation initiatives. Our specialists assist customers throughout the modernization journey—from application assessment and migration planning to cloud-native architecture design and AI-enabled software development.

Start Your Mainframe Modernization Journey

AWS Transform provides organizations with a practical, AI-powered approach to modernizing legacy mainframe systems while preserving critical business knowledge. By combining automated application discovery, business rule extraction, and fully traceable requirement generation, organizations can significantly reduce the complexity and risk of modernization projects. Whether you're planning your first modernization initiative or transforming a large mainframe portfolio, AWS Transform offers a scalable foundation for accelerating migration to modern AWS-based applications. Softprom is ready to help you unlock the full value of this next-generation modernization platform.