Yes, there is a time for a complete rewrite but the expense in throwing
away the knowledge embedded in the current source is much higher than
most people think.
Hence, the movement for refactoring in especially the Java world, where
a refactoring uses well-understood, small steps to transform the source
into something equivalent but "better". This keeps the knowledge but
leaves the source in a better state than you found it. Most of the
steps are quite tedious unless you have good tooling support. Like
renaming a variable, requires all usages to be found and changed.
Tedious, but Eclipse can do it for Java. Can the recent versions of RDi
(or whatever it is called this week) do the same for RPG?
Thorbjørn Ravn Andersen "...plus... Tubular Bells!"
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