Data validations at the character level, field level and at the screen completion level help eliminate erroneous data as it is being keyed. Re-key verify mode is available for applications where data integrity is especially important. Little or no programming is required to create highly efficient programs. VDE is the application generator for use with sequential data files and VDM is used with indexed files.
Programmers develop the applications fast, and the users key the data fast.
The application programs run fast also.