Understanding Process Behavior Charts (PBC) and Statistical Process Control (SPC)

What is a Process Behavior Chart?

A Process Behavior Chart (PBC), also known as a Statistical Process Control (SPC) chart, is a powerful statistical tool that helps organizations monitor and improve their processes. These charts provide a visual representation of process performance over time, making it easy to identify trends, patterns, and potential issues before they become serious problems.

Key Components of a PBC:

  • • Control Limits: Statistical boundaries that help distinguish between normal process variation and significant changes
  • • Center Line: The average or median of your process measurements
  • • Data Points: Individual measurements plotted over time

Why Use Process Behavior Charts?

Benefits for Business

  • ✓ Early detection of process changes
  • ✓ Reduced waste and rework
  • ✓ Improved product quality
  • ✓ Better decision-making with data

Common Applications

  • • Manufacturing process control
  • • Service delivery times
  • • Quality metrics monitoring
  • • Customer satisfaction tracking

Understanding Process Control Rules

Process Behavior Charts use statistical rules to identify when a process might be out of control. The most common rules include:

  • Rule 1:

    Any point outside the control limits

  • Rule 2:

    Eight or more consecutive points on one side of the center line

  • Rule 3:

    Six or more points in a row steadily increasing or decreasing

Getting Started with Easy PBC

Creating Process Behavior Charts doesn't have to be complicated. With Easy PBC for Google Sheets™, you can:

Try Easy PBC Now