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1000 10

100

80% 20% Endres 19 75 Gremillion 1984 Boehm 198 7

5 0% 10% Endres 1975 Gremillion 1984

20% 80% 20%
20%
60
IBM OS/360
Jones 19 86 1000
50

80%

Gerald Weinberg

Baris Beizer

25.18%

22.44%

16.19%

9.88%

8 98%

8.12%

2.76%

1.74%