The PILER decompiler system follows (almost) the classic three phase structure:

• Interpretation of the subject (input) program's "commands" (the Interpreter)
• Analysis of the source program for function and data usage (the Analyser)
• Expression of the source program in the target language (the Converter)

A reproduction of Figure 2 of [Barb74], complete with upper case text.

-- MikeVanEmmerik - 07 Jul 2003