This session discusses the advantages of using modern techniques in your RPG programs. After a short introduction to modularity in programming; we go step-by-step through the process of replacing called programs with sub-procedure modules and then converting these modules to procedures in a called service program.

• Internalize the concepts needed to write modular programs.
• Understand how following MVC architecture will make you programs more durable.
• Understand the steps in converting traditional programs to subprocedures and service programs.