SIX SIGMA - DMAIC Strategy

SIX SIGMA - DMAIC Strategy

As most process costs and time are typically non-value adding,focusing on these caters for dramatic results

Lean Six Sigma focuses on the reduction of activities that do not add value to the product or service delivered to the client (waste)

With the elimination of waste, processes become faster, better and cheaper

Waiting and rework are most common causes behind the non-value adding time

Most of process lead time is not adding value to the user

Six Sigma - DMAIC Strategy

Tools Used in Six Sigma DMAIC Technique

Tools commonly used in Define Phase

Project Charter-  Statement of the scope, objectives and participants, roles and responsibilities, defines the authority

SIPOC- Summarizes the inputs and outputs of one or more processes in table form

VOC

KANO Model- theory of customer satisfaction

AFFINITY DIAGRAM- is a business tool used to organize ideas and data.

Tools used in Measure Phase

Data collection

Control charts

Frequency plots

MSA- measurement systems analysis: MSA analyzes the collection of equipment, operations, procedures, software and personnel that affects the assignment

Pareto:  Pareto chart is a type of chart that contains both bars and a line graph, where individual values are represented in descending order by bars, and the cumulative total is represented by the line.

FMEA- Failure mode and effects analysis, FMEA is systematic techniques for failure analysis.

Prioritization Matrix

Stratification

Tools used in Analyze Phase

       Brainstorming: Brainstorming is a group or individual creativity technique by which efforts are made to find a conclusion for a specific problem 

Cause & Effect

          Cause & Effect
Control Charts
Hypothesis Testing
Flow Diagrams
Design of Experiments
Regression Analysis
Pareto Charts

 Sigma levels  and defect rate

Six Sigma is a disciplined and data-driven methodology that focuses on improving business processes and reducing defects, variability, and waste in products, services, and operations. The ultimate goal of Six Sigma is to achieve near-perfect quality by minimizing defects and variations, leading to improved customer satisfaction and operational efficiency.

Key concepts and components of Six Sigma include:

1. DMAIC: DMAIC is a structured problem-solving framework used in Six Sigma projects. It stands for Define, Measure, Analyze, Improve, and Control. Each phase guides the team through specific activities to identify problems, gather data, analyze root causes, implement improvements, and establish controls to sustain improvements.

2. DMADV/DFSS: DMADV (Define, Measure, Analyze, Design, Verify) is another methodology within Six Sigma, also known as Design for Six Sigma (DFSS). It is used for designing new processes, products, or services to ensure they meet customer requirements and have minimal defects from the outset.

3. Data-Driven Approach: Six Sigma heavily relies on data analysis to make informed decisions. Statistical tools and techniques are used to measure performance, identify trends, and pinpoint root causes of problems.

4. Process Improvement: Six Sigma aims to improve processes by reducing variability, eliminating defects, and optimizing performance. This leads to higher quality, increased efficiency, and cost savings.

5. Roles and Certifications: Six Sigma projects are led by professionals with different roles, including Champions, Black Belts, Green Belts, and Yellow Belts. These roles are certified through training programs that provide in-depth knowledge of Six Sigma tools and methodologies.

6. Process Capability: Six Sigma uses process capability indices, such as Cp, Cpk, Pp, and Ppk, to assess the ability of a process to consistently produce products or services within specified tolerances.

7. Defects Per Million Opportunities (DPMO): DPMO is a metric used to quantify the defect rate in a process. It represents the number of defects that could potentially occur in one million opportunities for defects.

8. Standardization: Six Sigma promotes the use of standardized processes, tools, and techniques across an organization to ensure consistency and replicability of results.

9. Continuous Improvement: Similar to other continuous improvement methodologies, Six Sigma focuses on ongoing enhancement and the elimination of waste and defects over time.

The term "Six Sigma" refers to a level of quality performance where the number of defects is so low that it's equivalent to having only about 3.4 defects per million opportunities. This high level of quality assurance requires rigorous analysis, optimization, and control of processes.

Six Sigma is widely used in various industries, including manufacturing, healthcare, finance, information technology, and more. It originated from Motorola and was popularized by companies like General Electric (GE), which used Six Sigma principles to achieve significant improvements in quality and profitability. The methodology's principles and tools can be applied to a wide range of processes and challenges, making it a valuable approach for organizations seeking to achieve operational excellence and customer satisfaction.