Code Refactoring

Modernize legacy transaction programs without the risk of a full rewrite.

Convert CICS/BMS, IMS/MFS, RPG/DSPF, and RPC programs into runnable modern Groovy while preserving behavior first, validating in-browser, and hardening toward cloud-ready services over time.

Explore Code Refactoring

3 legacy screen stacks covered: CICS/BMS, IMS/MFS, and RPG/DSPF
3 refactor modes: faithful, refactor, and aggressive
3 validation paths: player, RPC forms, and screen flows
2 products aligned: OL Next and OL Code

How it works

1. Preserve and translate

Use OL Next migration kits to convert legacy screen and RPC programs into runnable Groovy, keeping behavior stable before deeper modernization.

2. Validate in-browser

Exercise interactive programs with players, RPC input and output forms, and Groovy screen flows so teams can confirm functional equivalence early.

3. Refactor in phases

Progress from faithful conversion to refactor or aggressive OO styles, with options for cursor-to-pagination and file-to-DB access modernization.

Freestyle code refactoring workspace
Freestyle code refactoring workspace for reviewing modernization output.

Modernization outcomes

Lower-risk incremental change

Refactor in controlled phases instead of committing to a disruptive full rewrite up front.

Runnable modern Groovy

Move screen and RPC programs into a modern language target while retaining the execution paths teams need to test.

Service-shaped preparation

Use OL Code screen-to-RPC conversion when needed to prepare COBOL for service-oriented refactoring before or alongside OL Next.

Modernized data access

Harden applications with DB access management patterns, including cursor-to-pagination and file-to-DB modernization.

Ready to refactor legacy code with less risk?

Explore how Code Refactoring helps preserve behavior, validate results, and move critical applications toward modern services.

Explore Code Refactoring