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The highest level of training for a Six Sigma practitioner. Not only do they guide improvement teams, but are responsible for identifying improvement projects.
A high level, at-a-glance display of key performance indicators that are regularly monitored.
A type of variation which is natural and inherent to a process. These causes act randomly and independently of each other, are difficult to eliminate, and often require changes to a process or system.
A form of deductive logic that makes an item-by-item comparison using data and facts.
Pre-planned steps scheduled to go into effect when defects or failures occur. They are designed to minimize damage and cost due to failures.
Broadly describes ongoing, incremental efforts to make products and processes better.
The last phase of DMAIC which ensures that improved processes continue to work predictably and meet the customers’ expectations. In short, this phase ensures any gains are
Time charts designed to display signals or warnings of special cause variation.
A guide to continued monitoring of the process, and the response plan for each of the measures being monitored.
A decision-making tool to compare costs (negative results) vs. benefits (positive results) of a proposed change to a process.
Instructing employees in how to perform different tasks outside of their original roles.
A statistical concept expressed as the letter “r” that measures the strength and type of the relationship between two factors (‘X’ and ‘Y’).
The groups or individuals who receive the goods and services of of the process.
An emphasis on understanding the needs of those who receive the goods and services of the process.
The needs and expectations of the customer, discovered through a measurable, data-driven (“hard evidence”) approach.
A term that underlies the fact that the value of any given process step or output is defined by the groups or individuals who receive the the goods and services of the process.
The measurement of the time elapsed from the beginning of a process or a step to its end.
The practice of both determining how to display data and then interpreting the resulting data displays.
This is a well thought out approach to data collection that includes information around where to collect data, how to collect it, when to collect it and who is responsible.
Any process output, product, or service that does not meet customer requirements. One of the 8 Wastes.
Any aspect of a product or service that is critical to the customer. Useful in calculating DPO and DPMO.
Term applied to any process, product, or service with one or more defects.