| 0 | All code converted by CCCA without error; code compiles correctly under Enterprise COBOL |
| 1-3 | Requires moderate testing |
| 4 | Requires CCCA and possible manual conversion |
| 5-6 | Requires moderate to high degree of coordination |
| 7-8 | Requires high degree of coordination |
| 9 | Requires very high degree of coordination |
| 10 | Requires rewrite of module |
Based on the complexity ratings shown above (or your own defined complexity ratings), you can now assign a complexity rating to each attribute within a program. Use the highest complexity rating listed as the overall rating for that program. For an application, the highest complexity rating that you assign for any program within the application is the complexity rating for the entire application.
Table 1 shows estimated complexity ratings for conversions of specific program attributes.
| Program attribute | Description of attribute | Complexity rating | ||
|---|---|---|---|---|
| Lines of source code | 1000 or less | 0 | ||
| 5000 to 10,000 | 3 | |||
| 10,000 to 20,000 + | 5 | |||
| Fixed file attribute mismatch (FS 39)1 | 4 | |||
| VS COBOL II or later compiled with CMPR2 | Compiler option CMPR2 not supported | 1 | C | |
| COBOL 74 Standard COPY library members | 1 | M | C | |
| ANS COBOL V4 COPY library members | 1 to 10 | 2 | M | C |
| 10 to 20 | 5 | M | C | |
| 20 + | 6 | M | C | |
| Stability | Program with no plans for changes | 0 | ||
| Program changes twice a year | 3 | |||
| Program changes every month or more often | 8+ | |||
| Files accessed | 1 to 3 | 1 | M | C |
| 3 to 5 | 2 | M | C | |
| 6 + | 3 | M | C | |
| No source code for module | Module needs rewrite | 102 | ||
| Module does not need to be upgraded | 6 | |||
| CICS macro level program | 103 | |||
| Compiled by Full ANS COBOL V4 compiler (pre- compiler) | 4 | C | ||
| Compiled by OS/VS COBOL Release 2 compiler | LANGLVL(2) no manual changes | 1 | M | C |
| LANGLVL(1) no manual changes | 1 | M | C | |
| LANGLVL(2) manual changes | 4 | M | C | |
| LANGLVL(1) manual changes | 4 | M | C | |
| Uses language with changed results | Complex OCCURS DEPENDING ON | 4 | C | |
| Combined abbreviated relation conditions | 6 | M | ||
| Floating-point arithmetic | 6 | M | ||
| Exponentiation | 6 | M | ||
| Signed data | 2 | |||
| Binary data | 2 | |||
| Access methods used | ISAM4 | 10 | M | C |
| BDAM | 10 | C5 | ||
| TCAM | 10 | |||
| Uses Report Writer language (if not using Report Writer Precompiler) | 6 | M | C | |
| Uses Report Writer language (if using Report Writer Precompiler) | 0 | |||
| CICS | 4 | |||
On categories marked M you can gather information using the OS/VS COBOL MIGR option. On categories marked C you can gather information using the COBOL conversion tool (CCCA).