Lean 6 Sigma Dictionary

6 SigmaThis is a management style that aims to meet customer demands with high quality and error-free processes with an accuracy of 3.4 defects per million, or 99.999996% statistically.
Sigma The Greek letter that is the symbol of the statistical unit of measure used to describe the standard deviation in a population and measures the variability or propagation of data.
Deviation - VariationIt is not always possible to offer products and services with the same results and values in a process. This is the difference between the values.
Common Cause Variation Random variance embedded in the texture of a system.
Special Cause VariationUnpredictable, intermittent variation that usually results from an element in the process.
Master Black Belt These are full-time leaders with previous experience of being a Black Belt employee. They train Black Belts and coach Black Belt projects. 
Black BeltThese are full-time leaders with previous experience of being a Black Belt employee. They train Black Belts and coach Black Belt projects.
Master Green Belt These are part-time project leaders who preside over Master Green Belt Projects.
Green Belt These are project team members providing part-time support for projects.
Project SponsorThis is the project owner. He/she presides over the process of determining the relevant projects in his/her field, as well as determining priorities.
DMAIC6 Sigma projects aimed at improving existing processes.
DMEDI6 Sigma projects for the reconstruction of newly created processes or broken processes.
Kick offThis refers to project start meetings.
GatewayThis refers to project phase transition meetings.
Project StatementA document explaining why the project is being done, the target, the constraints and opportunities, the resources to be used and the project plan.
SMARTSpecific, Measurable, Accessible, Relevant, Time-Bound
SIPOCThis is a tool used by the team to identify all relevant staff members of the process. (Suppliers, Inputs, Process, Outputs, Customers)
Quick WinEasy and fast to implement, low-cost and quick acquisition opportunities under the control of the team.
VOCVoice of the customer
CCRA critical customer demand
VOBVoice of the business
CBRCritical business requirements
BRMBusiness risk management. Allows the impact of project results on existing processes to be pre-determined.
Operational DescriptionThis is a concept that ensures a compromise between the key attributes of what, how and who in terms of the values the team has decided to measure.
Pugh MatrixConcept selection matrix.
AHPThis is a decision-making method that associates selection criteria with each other and thus determines their level of importance.
5SA process and method that enables the creation and maintenance of an organized, clean and high-performing work environment.
CapacityThe maximum amount of product/service that a process can produce over a period of time.
Takt Rate The amount of product/service requested by the customer within a certain period.
Time TrapAny process steps that delay the total process.
ConstraintTime trap preventing the meeting of customer requirements.
Value Stream MappingAn improved workflow diagram including material and information flow, as well as important parameters.
HistogramThis shows the midpoint, distribution and shape of the data of a variable, as well as points remaining outside.
Run ChartsThis shows the data points of observation over time.
Control ChartsThis shows the change in data points over time, control limits and averages.
Scatter PlotThis shows the response of the Y output to the X input.
Hypothesis TestingThis indicates whether a statistical parameter (mean, standard deviation, etc.) is different from the values at hand (our areas of interest).
ANOVAThis is a test that allows comparison of the averages of more than two samples.
T-TestThis is a test to see if there is a difference between the two groups.
Multiple Linear RegressionThis is used for precise identification, summarizing, detection and quantification.
Logistic RegressionThis is used for defining the relation, summarizing, detection and quantification.
EMEAError Modes and Effects Analysis
FMEAFailure Modes and Effects Analysis