RPG2 and fixed-format conversion
Legacy RPG logic can be analysed, remediated, and moved toward RPGLE and clearer structures while keeping the business rules understandable.
RPG LEGACY MODERNISATION
Legacy RPG Modernisation and RPG2 to RPGLE Conversion
Wild Impala Enterprises modernises mature RPG systems with a controlled approach that preserves working business logic while improving structure, clarity, and maintainability.
RPG2 to RPGLE
Service programs
Business logic preserved
Modernisation Scope
Improve maintainability without losing the system knowledge already encoded in RPG.
Many IBM i / AS400 applications still run critical policy, accounting, client, and operational processes. Reviving those systems safely means understanding the logic first, then modernising in deliberate steps.
Reusable procedures and service programs
Modernised components can be organised into service-based designs that reduce duplication and make future change easier to control.
Coexistence with existing systems
Modernisation can happen around live business systems, with careful audit control and a bias toward low-risk delivery.
Legacy code analysis
Code analysis helps identify business rules, dependencies, risky areas, and the right sequence for remediation or enhancement work.
Delivery Approach
A practical sequence for controlled RPG modernisation.
Wild Impala's approach favours careful assessment, preservation of proven rules, and incremental improvement over disruptive replacement.
- Assess the current RPG codebase, integrations, and business process risk.
- Separate stable business logic from code that needs remediation or restructuring.
- Modernise toward RPGLE, reusable procedures, and service program patterns where appropriate.
- Support testing, audit comparison, and controlled production change.
Related Services
Modernisation usually connects to migration and maintenance.
IBM i / AS400 migration support
For platform, system, data, or application migration work involving IBM System/38, mainframe, and IBM i / AS400 environments.
RPG development and maintenance
For ongoing enhancements, production support, reliability improvements, and maintenance of business-critical RPG applications.
FAQ
RPG modernisation questions
What does RPG legacy modernisation include?
It can include legacy RPG code analysis, controlled RPG2 to RPGLE conversion, service program design, reusable procedures, and maintainability improvements while preserving proven business logic.
Can existing IBM i / AS400 systems keep running during modernisation?
The Wild Impala approach favours controlled, low-risk steps and coexistence with existing systems rather than forcing one large replacement.
Is this service available in South Africa?
Wild Impala Enterprises is based in South Africa and works with organisations running business-critical RPG and IBM i / AS400 systems.
Start With The Codebase
Discuss a controlled RPG modernisation path.
Share the system context, codebase age, target platform, and the business risk around change. Wild Impala can help map a pragmatic next step.