Example body of evidence

4GL vs. COBOL: reports in the literature (Misra and Jalics, Matos and Jalics, Verner and Tate, 1980s)

• 4GL was 29-39% shorter (in source lines) than COBOL

• 4GL development process was 15% faster to 90% slower

• 4GL performance was 6 times faster to 174 times slower

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