Planning your strategy
Before upgrading your source programs to Enterprise COBOL, develop a conversion strategy. For help in completing your runtime library migration to Language Environment®, see Chapter 3. Planning the move to Language Environment in the Enterprise COBOL 4.2 Compiler and Runtime Migration Guide.
Your migration strategy might be to gradually recompile applications one program at a time as you make program changes, or you might recompile entire existing applications with Enterprise COBOL at once. You may also decide to use a little bit of both strategies.