Rational Developer for System z
Enterprise PL/I for z/OS, Version 3.8, Migration Guide

Conversion Strategies

Planning the move to Language Environment
Prepare to move to the Language Environment run-time library
Installing Language Environment
Assessing storage requirements
DASD storage requirements
Virtual storage requirements
Educating your programmers about Language Environment
Take an inventory of your applications
Vendor tools, packages, and products
PL/I applications
Existing PL/I load modules
Decide how to phase in Language Environment
Multilanguage conversion
Determining how applications will have access to the library
LNKLST/LPALST
STEPLIB
Problems with STEPLIB and IMS programs
STEPLIB example
Set up a regression testing procedure
Take performance measurements
Cut over to production use
Planning to move to the new compiler
Prepare to move your source to the new compiler
Installing Enterprise PL/I
Assessing storage requirements
Educating your programmers on new compiler features
Take an inventory of your applications
Taking an inventory of vendor tools, packages, and products
Taking an inventory of PL/I applications
Prioritizing your applications
Determining conversion priority
Setting up move/no move categories
Make application program updates

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