R0007/2026-03-20/C005 — Assessment¶
BLUF¶
Schulmeyer did formalize the NNPP concept and estimated up to three out of ten may qualify. However, the concept appeared in the 1987 Handbook of Software Quality Assurance, not 1992. The 1992 reference is to Total Quality Management for Software, a later edition.
Probability¶
Rating: Likely (55-80%)
Confidence in assessment: Medium
Confidence rationale: Based on web-accessible evidence from primary and secondary sources.
Reasoning Chain¶
- Schulmeyer states: In a team of ten, expect as many as three people to have a defect rate high enough to make them NNPPs. The probability that there is not even one NNPP out of ten is virtually nil. The concept appeared in the Handbook of Software Quality Assurance (1987) and Total Quality Management for Software (1992). [SRC01-E01, High reliability, High relevance]
Evidence Base Summary¶
| Source | Description | Reliability | Relevance | Key Finding |
|---|---|---|---|---|
| SRC01 | Net Negative Producing Programmer | High | High | Schulmeyer did formalize the NNPP concept and estimated up to three out of ten may qualify. However, the concept appeared in the 1987 Handbook of Software Quality Assurance, not 1992. The 1992 reference is to Total Quality Management for Software, a later edition. |
Collection Synthesis¶
| Dimension | Assessment |
|---|---|
| Evidence quality | Medium to Robust |
| Source agreement | High |
| Source independence | Assessed per claim |
| Outliers | None identified |
Detail¶
Schulmeyer states: In a team of ten, expect as many as three people to have a defect rate high enough to make them NNPPs. The probability that there is not even one NNPP out of ten is virtually nil. The concept appeared in the Handbook of Software Quality Assurance (1987) and Total Quality Management for Software (1992).
Gaps¶
| Missing Evidence | Impact on Assessment |
|---|---|
| Full-text access to primary sources | Low to Moderate |
Researcher Bias Check¶
Declared biases: No researcher profile provided.
Influence assessment: Standard claim verification — no specific bias concerns identified.
Cross-References¶
| Entity | ID | File |
|---|---|---|
| Hypotheses | H1, H2, H3 | hypotheses/ |
| Sources | SRC01 | sources/ |
| ACH Matrix | — | ach-matrix.md |
| Self-Audit | — | self-audit.md |