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Topic Overview

Getting Started

General Info

How are case interviews structured? Why are they used in consulting recruitment? Find all the information here.

Consulting Skills

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Prepping for Your Case Interview

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Types of Cases

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Growth Strategy

Structuring

Introduction: Case Interview Structure

Understand why a clear structure is crucial in case interviews and how it helps you solve complex cases efficiently.

Frameworks

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Math in Case Interviews

Introduction: Case Interview Math

Learn about the most common mathematical requirements in case interviews and how to handle them confidently and efficiently.

Important Calculations

Discover the key calculations needed in case interviews and how to apply them quickly and accurately to impress.

Business Concepts

Useful Business Analysis Tools

Our collection of business analysis tools contains the most important frameworks for case analysis. Learn more in our Case Interview Basics.

Common Terms of Business

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Six Sigma

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Six Sigma

In today's competitive business world, it's not just about delivering products and services. Companies are increasingly focusing on optimizing their processes, avoiding inefficiencies, and taking quality to the next level. This is where Six Sigma plays a crucial role. 💡

This data -driven methodology has proven to be highly effective in identifying and fixing errors, as well as improving the overall performance of business processes. It also promotes a culture of data-driven decision-making.

Table of contents

What is Six Sigma?

Who benefits from Six Sigma?

Sticky

What is Six Sigma?

Six Sigma is a methodology for improving quality and processes within organizations. It helps reduce errors and defects to an extremely low level. The term "Six Sigma" refers to a statistical value that indicates this very low defect rate.

The methodology consists of several phases, also known as the DMAIC or DMADV process (Define, Measure, Analyze, Improve, Control or Define, Measure, Analyze, Design, Verify). Here's an overview:

Define: In this phase, project goals are set, relevant processes are identified, and the problem is clearly defined.
Measure: Data is collected to understand and measure the current state of the process. Statistical analysis helps identify the causes of errors or quality issues.
Analyze: The collected data is analyzed to find the root causes of the problems. Tools like cause-and-effect diagrams and statistical analyses are used here.
Improve: Based on the analysis results, improvement measures are developed and implemented to optimize the process and increase quality.
Control: After improvements are implemented, control measures are introduced to ensure the process remains stable and the quality goals continue to be met.

Six Sigma is not just a methodology but also a mindset. It’s about continuously driving improvements and eliminating errors and variations that can affect performance. The term “Six Sigma” is a metric that indicates how close a process is to perfection. This number helps companies measure and improve their performance.

Who benefits from Six Sigma?

Six Sigma is applicable across industries and offers advantages in many areas. Whether in manufacturing, healthcare, finance, or software development, the methodology has shown to be effective in various sectors. Whether you're working in a startup or a large international company, Six Sigma principles can help improve operations. Employees and leaders at all levels benefit from its application, as it enables them to actively participate in improvement processes and experience the benefits of higher efficiency.

Find More Business Concepts in Our Case Interview Basics

Case Interview Basics

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