EPP is an E project development tool which allows an E application to be
developed in a modular fashion. Use of this tool contributes towards some
important software engineering concepts, such as reusability and modularity.
Anyone who has tried to write a respectable application in a language which
doesn't support modules can attest to the unwieldiness of a huge main program
file. And anyone who has written multiple applications in a language which
supports modules can attest to the luxury of being able to reuse source
components without having to block-copy source code from several locations.
Include source, Author: Barry Wills