SIXSIGMA INSTITUTE™

Accuracy vs Precision

Processes may have a problem of Low Accuracy and/or Low Precision. The processes and their associated measurements need to have High Precision and High Accuracy in order produce the expected business outcomes.


Accuracy vs Precision


As we see in the above picture on the top-left corner, all the darts are concentrated in one corner of the board instead of being concentrated at the center of the dart board. This is an example of High Precision and Low Accuracy. Processes which have high precision and low accuracy need to work towards improving their accuracy so that they start achieving the target.

Similarly, the picture on the top-right corner indicates that all the darts are around the internal blue line of the dart-board but are not exactly on target. This is an example of a situation with High Accuracy and Low Precision. Processes with High Accuracy and Low Precision need to focus on improving their precision so that they start achieving the target.



Your Six Sigma Training
Table of Contents


What is Six Sigma?
What is Quality?
What is the Hidden Factory?
Six Sigma Process Excellence Disciplines
History of Six Sigma
How does Six Sigma work?
What is Sigma and Why is it Six Sigma?
What is the Focus of Six Sigma?
How does Six Sigma DMAIC Process work?
Six Sigma Roles and Responsibilities
Six Sigma vs Business Process Reengineering
What is Statistics?
What is Descriptive Statistics?
What is Inferential Statistics?
Accuracy vs Precision

Six Sigma DMAIC Process - Introduction to Define Phase
Six Sigma DMAIC Process - Introduction to Measure Phase
Six Sigma DMAIC Process - Introduction to Analyze Phase
Six Sigma DMAIC Process - Introduction to Improve Phase
Six Sigma DMAIC Process - Introduction to Control Phase
Six Sigma DMAIC Process - A Real World Example

DMAIC Define - Capturing Voice of Customer (VOC)
DMAIC Define - KANO Analysis
DMAIC Define - CTQ Drilldown Tree
DMAIC Define - Six Sigma Project Charter
DMAIC Define - Change Acceleration Process (CAP)
DMAIC Define - Process Mapping / SIPOC
DMAIC Define - Process Mapping / Flow Charting
DMAIC Measure - Identify Possible Project Y's
DMAIC Measure - Types of Data
DMAIC Measure - Variation / Discrete vs Continuous Thinking
DMAIC Measure - Data Collection Strategy - Sampling
DMAIC Measure - Measurement System
DMAIC Measure - Process Capability

DMAIC Analyze - As Is Process Map
DMAIC Analyze - Data Door Analysis
DMAIC Analyze - Control Impact Matrix
DMAIC Analyze - Why Analysis
DMAIC Analyze - Hypothesis Testing
DMAIC Analyze - Analysis Examples

DMAIC Improve - Solution Parameter
DMAIC Improve - Generate Possible Solution
DMAIC Improve - Screen Against Musts and Wants
DMAIC Improve - Conduct Cost-Benefit Analysis
DMAIC Improve - Failure Mode Effect Analysis (FMEA)
DMAIC Improve - Pilot Solution Implementation
DMAIC Improve - Validate Measurement System
DMAIC Improve - New Process Capability / Mapping

DMAIC Control - Statistical Process Control
DMAIC Control - What is a Process Control?
DMAIC Control - What are Control Charts?
DMAIC Control - SPC - Out of Control
DMAIC Control - Leading Indicator vs Lagging Indicator
DMAIC Control - Control Chart Selection
DMAIC Control - Risk Assessment and Mistake proofing - Poka Yoke
DMAIC Control - Control and Implementation Plans
DMAIC Control - Review and Sign-off

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