Abbreviations

Return on Investment

Voice of the Customer

• C = Critical
• T = To
• X = Characteristic {time, cost, satisfaction}

• D - Define
• M - Measure
• A - Analyze
• I - Improve
• C - Control

• Supplier
• Input
• Process
• Output
• Customer

made to define the sub-processes in major business processes, and to identify possible measure

Measurement System Analysis

Analysis of Variance

a statistical technique for analyzing data that tests for a difference between two or more means by comparing the variances *within* groups and variances *between* groups.”

Design of Experiments

One Factor at a Time

Failure Mode and Effect Analysis

A procedure and tools that help to identify every possible failure mode of a process or product, to determine its effect on other sub-items and on the required function of the product or process

Define, Measure, Analyze, Improve, Control

Used when a product or a process already exists in a company

Define, Measure, Analyze, Design, Verify / Design for Six Sigma


Used when a new process or a product has to be developed

Critical to Quality {tree}

Program evaluation and review technique

{A version of the Activity Network Diagrams}

Foremost Start - The earliest time that each task can begin.

Foremost Finish - The earliest time a task can conclude

Latest Start - the Latest time that each task can begin without disturbing the project timetable

Latest Finish - The latest time that each task can conclude without disturbing the project timetable.

Capability Index

Population Proportion

Lowercase Sigma

Standard deviation of a population

Standard Deviation of a Sample

Uppercase Sigma

Summation

Sample Size 

Number of data in a sample

Population Size

Number of data in a population

Mean of a sample size

Average of a sample size

Mean of a Population

Average of a Population