For many COBOL programmers, graphical user interfaces, GUI environments, and GUI programming are new territory. Enhancing or adding a graphical user interface to an existing COBOL program raises many questions and issues. Before you begin, we recommend that you thoroughly consider the following basic questions:
1. To what extent will the program's interface change?
2. How suitable is the current interface to conversion?
3. What resources are needed for the project?
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Extent of the interface changes