ISO 8000 - Data Quality 62:4.3: 4.3 Rating process attributes and process capability

Every attribute is rated on the four-point ISO/IEC 33020 scale of Table 2: N, not achieved (hardly any evidence; 0 to 15 per cent); P, partially achieved (some evidence of an approach and some achievement, parts of it unpredictable; above 15 up to 50 per cent); L, largely achieved (evidence of a systematic approach and substantial achievement, with some weaknesses; above 50 up to 85 per cent); and F, fully achieved (evidence of a complete, systematic approach and full achievement, with no significant weakness; above 85 up to 100 per cent). Assessment indicators are how the evidence is collected, and assessors choose a set suited to the ISO 8000-61 processes (the example given is building them from the ISO 8000-63 measurement stack). Each process's capability level then follows from its attribute ratings as Table 3 sets out: Level 1 needs PA.1.1 at L or F; Level 2 needs PA.1.1 at F with PA.2.1 and PA.2.2 at L or F; and so on upward, each level requiring every lower attribute at F and its own two attributes at L or F.