Business Analyst: What is statistical process control (SPC)?

SPC — monitoring process using control charts.

Control chart elements:

• Center line (mean).
• Upper control limit (UCL).
• Lower control limit (LCL).
• Data points.

Rules:

• Points outside limits = out of control.
• 7 points in a row on one side = trend.
• 7 points increasing = trend.

Example:

BA use:

• Monitor KPIs.
• Identify anomalies.
• Validate improvements.