22 and 10

12 and 20

20 and 12

10 and 22

2.34

2.58

1.75

3.25

3.41

Remove ambiguity

Ensure that everyone has the same understanding

Define a defect

Identify what to measure

Cycle time for change request process

SPAN for ontime delivery

Difference between Actual and Estimated cycle time

Month of year

Vital X

Dispersion

Central Tendency

Standard Deviation

1000

2500

2000

1500

Discrete Data

Random Data

Normal Data

Continuous Data

Discrete Data Analysis

Random error

Bias

Repeatability

Reproducibility

Variation due to repeatability

Variation due to reproducibility

Variation due to process

Total variation due to measurement

Inconsistent rounding

Measurement process may be biased

Stratify the data first to study further

Measurement process not sensitive enough

Measurement process may be biased

Inconsistent rounding

Measurement process not sensitive enough

Stratify the data first to study further

Measurement process not sensitive enough

Measurement process may be biased

Inconsistent rounding

Stratify the data first to study further

Selecting key output measures

Collecting baseline data

Measurement System Analysis

Developing a response plan in case measures go out of control

Range

Standard Deviation

Median

Variance

Ordered category

Binary Data

Count Data

Continuous data