: Categorical counts, such as "pass/fail" or the number of surface scratches. Typical Implementation Steps SPC-3 | Statistical Process Control - AIAG
: Random, inherent fluctuations in a stable process. Statistical Process Control, Reference Manual
: Includes Cause-and-Effect diagrams, Check Sheets, Scatter Diagrams, and Flowcharts. Data Classification : : Categorical counts, such as "pass/fail" or the
: The primary tool for monitoring stability over time. : Categorical counts