Look at the dependencies between COBOL
programs and copybooks, and more.
Allows the user to identify the programs using a particular copybook/subprogram or what copybooks/subprograms are used by particular program.
Coboldoc is a java web 2.0 style interface for analyzing COBOL. It maintains its own cross reference database for static & dynamic calls to help with impact analysis or for general COBOL surfing. It's also designed to run directly on z/OS