What is the objective of the Six Sigma process quizlet?

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Introduction to Lean Six Sigma

Terms in this set (27)

Six Sigma

Refers to a product or process that produces only three defects (or errors) out of every million opportunities.

Sigma Level

Sigma level is a quality metric that measures the level of performance of a process based on the number of defects per million opportunities (DPMO) in that process, compared to the near-perfection level of Six Sigma, which equates to 3.4 defects per million opportunities.

Benefits of Six Sigma

Customers get more quality, reliability and value.
Associates get more job security, teamwork, and participation.
Shareholders get more profitability, market share, and return on investment.

Defect

Any failure of a product or service to meet customer requirements. The "customer" may be the external consumer, or may be the next step of an internal process.

Philosophy Lean Six Sigma

Removing variability from upstream operations that are inputs to a process will yield defect-free outputs

Goal Lean Six Sigma

Identify the significant inputs, then tackle the root causes of their adverse variability through improved process controls, error-proofing, redesign for manufacturability, and other methods.

Y=f(X)

Means output (Y) is a transfer function (f) of inputs (X), variability in the inputs causes defects, or errors, in the output. Transformation of inputs by the process into an output is represented by f.

Central Activities of a Lean Six Sigma Project

Identifying and resolving upstream root causes of variation (defects)

Defects Per Million Opportunities (DPMO)

When a process is improved to the point to 3 or less defects in each million opportunities, process reaches Six Sigma performance level.

Purpose of Lean Six Sigma

Business Success defined by:
1) Reduced cost
2) Increased market share
3) Improved customer satisfaction
4) Faster time to market
5) Increased revenue and profits

Lean Six Sigma

A comprehensive and flexible system for achieving, sustaining and maximizing business success (objective, tangible, bottom-line results). Six Sigma is uniquely driven by close understanding of customer needs, disciplined use of facts, data, and statistical analysis, and diligent attention to managing, improving, and reinventing business processes."

Lean Methods

Developed to attack the waste associated with the flow of material and information - the velocity, or speed, of a process from beginning to end.

Value Stream Map - Purpose

Define Current and Desired Future State
Visual map of the value stream created to show the flow of materials and information. Value stream maps have been widely used as a central component of the Toyota Production System. They include information on takt time (demand rate), inventory levels, changeover times, and manpower. The goal of Value Stream Mapping is to identify the primary process steps and activities that require process improvement.

Value Stream Map - Definition

Visual map of the value stream created to show the flow of materials and information. Value stream maps have been widely used as a central component of the Toyota Production System. They include information on takt time (demand rate), inventory levels, changeover times, and manpower. The goal of Value Stream Mapping is to identify the primary process steps and activities that require process improvement.

Value Stream Map - DMAIC Alignment

Define

Takt Time - Definition

The time it should take to produce one unit if production is matched to demand. Takt time = net available production time (after breaks) per period divided by average customer demand during that same period.

Takt Time - Purpose

Line Balancing

Takt Time - DMAIC Alignment

Define / Measure

Little's Law / Theory of Constraints - Definition

Little's Law is an equation that expresses the relationship between processing speed, the level of work-in-process inventory, and process cycle time. The equation states: Cycle Time = Items-In-Process / Throughput Volume Per Unit of Time

Little's Law / Theory of Constraints - Purpose

Reduced Work-In-Process, Reduced Cycle Time

Little's Law / Theory of Constraints - DMAIC Alignment

Improve

Quick Changeover - Definition

Methodology used to reduce the time to execute process set-ups required when changing between different products or services. Lean systems achieve lower inventory levels through small lot sizes, which in turn require Quick Changeovers. See also SMED.

Quick Changeover - Purpose

One Piece Continuous Flow

Quick Changeover - DMAIC Alignment

Improve

Kanban / Pull Scheduling - Definition

System where inventories of downstream operations are replenished by pulling work-in-process inventory on demand from upstream operations as the downstream operations exhaust their inventories. See also Just-In-Time.

Kanban / Pull Scheduling - Purpose

One Piece Continuous Flow

Kanban / Pull Scheduling - DMAIC Alignment

Improve

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What is the objective of the Six Sigma process?

The main goal of any Six Sigma implementation is quality improvement. The term originally comes from the sigma rating used to statistically rate manufacturing processes in engineering. A six sigma process occurs when no defects are expected in 99.99966% of all chances to produce them.

What is process in Six Sigma quizlet?

A six-sigma process: define, measure, analyze, improve, and control. Used for projects in and improving in existing business process. You just studied 84 terms!

Which of the following is the key objective of Six Sigma?

The goal of Six Sigma is to reduce variation for optimal quality control. The discipline known as Lean Six Sigma (LSS) blends these two approaches. Refinements to the production process are essential to managing and reducing the 8 wastes analyzed by the Lean method.

What is the Six Sigma process?

Six Sigma is a process that makes use of statistics and data analysis to analyze and reduce errors or defects. In this process, the purpose is to improve cycle times while reducing manufacturing defects to no more than 3.4 defects per million units or events.