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Complete CL: The Definitive Control Language Programming Guide, Fourth Edition by Ron Hawkins, Doug Pence, Ted Holt, Kevin Forsythe, Ernie Malaga

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Chapter 7. Interprogram and Intermodule Communications

The program object is the only type of object that actually performs work on the system. If you want to run a complicated application such as Materials Requirements Planning (MRP), you are likely to code many, many programs. By following the guidelines for modular programming, you make program maintenance easier than if you had a single, mammoth program to handle everything. When you spread the work among several programs or procedures, however, you quickly realize that you need a method to pass information between them. One program must be able to communicate with others. Information can be passed between programs using any of the following:

  • Database files. This method is not discussed here ...

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