The size of the PVT system may be measured in several ways. The following table presents some size metrics for version 2.1. The figures for lines of code apply only to the Fortran version, since almost all the C code was generated automatically.
number of modules : 86
number of test programs : 479
number of lines in test programs : 81,861
number of subroutine libraries : 49
number of subroutines/functions : 367
number of lines in subroutines/functions : 29,098
number of lines in system utilities : 892
number of lines in module documentation : 83,177
number of lines in system documentation : 12,931
number of SRs (semantic requirements) : 1,440
number of TCs (test cases) : 2,915
staff-months of effort : 115
(design, code, documentation)