Productivity is more than objects …

• C programmers can produce about 200 function points in 3 years
• 15% reuse - Software Productivity Research data
• COBOL is twice as productive as C
• 4GL doubles COBOL productivity
• OO environments can double 4GL productivity
• assumption - 50% reuse year 2, 80% reuse year 3
• Visual environments double OO productivity

References

• Jones, Capers, Programming Languages Table, Release 8.2. Software Productivity Research, March 1996.
• 3rd Generation Default - 80 LOC/FP (C=128, C++=53, COBOL=107)
• 2nd Generation Default - 20 LOC/FP (PowerBuilder=20, VB5=29, Smalltalk=21, M=16)
• 5th Generation Default - 5 LOC/FP (Reuse=5, Spreadsheet=6)