Program-data dependence refers to the coupling of data stored in files and the specific programs required to update and maintain those files such that changes in programs require changes to the data.

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Program-data dependence is a real-world problem that arises when the data used by one program is defined and managed by another program. This means that changes to the program may require corresponding changes to the data, which can be a source of errors and bugs.

Program-Data Dependence Refers to the Coupling of Data Stored in Files