DP-4: Unused Variables

IfSQ

Defect Indicators: (This information is currently under review and available only to Members and Fellows.)

Risks: (This information is currently under review and available only to Members and Fellows.)

Assessment: (This information is currently under review and available only to Members and Fellows.)

Remedy: (This information is currently under review and available only to Members and Fellows.)

References:

An Empirical Study of Software Design Practices (David N. Card, Victor E. Church, and William W. Agresti), 1986.

Research Findings:

Unreferenced variables strong indicator for other errors:
46 percent of routines with no unused variables had no errors compared to only 17 to 29 percent for those with one or more unreferenced variables.