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Essential Six Sigma for Management Consultants (Udemy.com)

A practical guide on how to improve processes using Six Sigma tools during consulting projects

Created by: Asen Gyczew

Last updated September 2026

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What you will learn

  • How to conduct fast and efficiently analyses during Six Sigma projects
  • What is Six Sigma
  • How to define the problem you want to solve
  • What are SIPOC, CTQ, and the voice of customers
  • How to use Fishbone Diagram
  • How to identify the things causing the problem
  • How to conduct analysis of data in Excel
  • Essential Linear Regression in Excel
  • How to find and manage potential improvements
  • What is Random Variable and Normal Distribution

How it compares

Against the other 1,210 rated Udemy courses in Business on CourseDuck:

  • Rating4.6 out of 5higher than 74% of them
  • Reviews312#803 of 1,211 by number of reviews
  • Length3.5 hourslonger than 57% of them
  • Last updatedSeptember 2026more recently than 96% of them

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Course Description

What is the aim of this course?

Consulting firms are hired very often to help optimize processes and improve the quality of the products delivered. One of the frameworks used is the so-called Six Sigma, which tries to find the root cause of problems using simple statistical analysis. In this course, I will show you the essential things that you should know about Six Sigma that may come in handy during consulting projects.

In the course, you will learn the following things:

  1. What is Six Sigma

  2. How to define the problem you want to solve

  3. How to identify the things causing the problem

  4. How to conduct in Excel analysis of data related to Six Sigma projects

  5. How to find and manage potential improvements

This course is based on my 15 years of experience as a consultant in top consulting firms and as a Board Member responsible for strategy, performance improvement, and turn-arounds in the biggest firms from the Retail, FMCG, SMG, B2B, and services sectors that I worked for. I have carried out or supervised over 90 different performance improvement projects in different industries that generated a total of 2 billion in additional EBITDA. On the basis of what you will find in this course, I have trained in person over 100 consultants, business analysts, and managers who are now Partners in PE and VC funds, Investment Directors and Business Analysts in PE and VC, Operational Directors, COO, CRO, CEO, Directors in Consulting Companies, Board Members, etc. On top of that, my courses on Udemy were already taken by more than 350 000 students, including people working in EY, McKinsey, Walmart, Booz Allen Hamilton, Adidas, Naspers, Alvarez & Marsal, PwC, Dell, Walgreens, Orange, and many others.

I teach through case studies, so you will have a lot of lectures showing examples of analyses and tools that we use. To every lecture, you will find attached the Excel files as well as additional presentations and materials shown in the lectures. Therefore, as a part of this course, you will also get a library of ready-made analyses that can, with certain modifications, be applied by you or your team in your work.

Why have I decided to create this course?

Tools and approaches used in Six Sigma can be extremely useful during certain consulting projects. Most books and courses will flood you with tons of methods that you can use. This may lead to huge frustration during consulting projects as you will have problems with choosing the right method or tool. Therefore, I have decided to create this course that will help students understand or refresh the essential concepts and tools that they need during consulting projects, devoted to using Six Sigma to improve processes. The course will give you the knowledge and insight into real-life case studies that will make your life during a consulting project much easier. Thanks to this course, you will know what and how to do during consulting projects. You will master how to analyze data and draw conclusions from the analyses.

To sum it up, I believe that if you want to become a world-class Management Consultant or Business Analyst, you have to have a good understanding of the essential Six Sigma tools. That is why I highly recommend this course to Management Consultants or Business Analysts, especially those who did not finish Math or Physics. The course will help you become an expert in process improvement at the level of McKinsey, BCG, Bain, and other top consulting firms.

In what way will you benefit from this course?

The course is a practical, step-by-step guide loaded with tons of analyses, tricks, and hints that will significantly improve the speed with which you understand and analyze businesses. There is little theory – mainly examples, a lot of tips from my own experience, as well as other notable examples worth mentioning. Our intention is that, thanks to the course, you will learn:

  1. What is Six Sigma

  2. How to define the problem you want to solve

  3. How to identify the things causing the problem

  4. How to conduct in Excel analysis of data related to Six Sigma projects

  5. How to find and manage potential improvements

You can also ask me any questions either through the discussion field or by messaging me directly.

How is the course organized?

The course is currently divided into the following sections:

  • Introduction. We begin with a little introduction to the course, as well as some general info on how the course is organized

  • Essential Concepts in Six Sigma. Let’s start with the essential things around Six Sigma. We will discuss what Six Sigma is, and we will briefly discuss the most often-used framework – DMAIC.

  • Define Stage. In this section, we will discuss what you will have to do during the Define stage. We will discuss tools and frameworks used during this stage. You will learn things like SIPOC, the voice of the customer, CTQ, Fishbone Diagram, Issue Tree, and 5 Whys.

  • Measure Stage. In this section, we will discuss what you will have to do during the Measure stage. We will discuss tools and frameworks used during this stage.

  • Analyze Stage. The analysis phase turns raw data into conclusions. It is important to choose the right analytical techniques. Based on the analyses, we will be able to improve processes. In this section, we will see how this can be done in practice. You will learn things like correlation, regression analysis, comparison of averages, random variables, and normal distribution.

  • Improve Stage. One of the most interesting stages is the improvement stage. You know what the problem is, so now you have to come up with potential solutions and test them. In this section, we will discuss what you can do to improve the situation based on previous analysis.

  • Control Stage. Once you have improved certain KPIs. It’s a good idea to make sure that the progress you have made is not wasted. Therefore, you need to implement some control mechanisms. In this section, we will see how this can be achieved.

  • Case Study in Six Sigma. In the last section, we will try to apply the techniques we have discussed to improve the situation in a clinic.

You will also be able to download many additional resources

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Instructor Details

Asen Gyczew

Expert in performance improvement, scaling businesses, and turning-around companies with significant experience both in management as well as in supervision of medium size companies (EUR 20 – 500 million) and startups. I have trained in person over 100 consultants, business analysts, and managers who now are Investment Directors, CEO, Partners in PE and VC funds, Sales and Marketing Directors, Operational  Directors, COO, Directors in Consulting Companies, Supply Chain Directors, Board Members, etc.


Functional experience:
performance improvement, strategy development, startups, intrapreneurship, post-merger integration and cost reduction, due diligence, turn-arounds, PMO; 

 Industry experience: SMCG (domestic appliances, furniture, ceramic tiles), FMCG (cosmetics, juice, meat), retail (electronics, convenience shops, pharmaceuticals, DIY, vending, fashion, toys), B2B (aluminum system, plywood, alcohol, reagents, loading systems), services (MRO, consulting, outsourcing), foodtech, marketplaces

Countries: Poland, Serbia, Russia, Ukraine 

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Reviews

4.6

312 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Mac on 1/3/2026

A highly practical and insightful course that equips management consultants with essential Six Sigma tools to drive measurable improvements and deliver greater value to clients.

By Haroon Assaf on 12/17/2024

Simple and straightforward explanations cover various topics in tandem with Six Sigma and DMAIC. I highly recommend it to corporate workers and even post-secondary students.

By Janusz Dzik on 9/26/2024

I can definitely recomend the course, nice way to spend time and learn some new stuff.

By Saket Kumar Mishra on 6/9/2024

Astonishing course with clarity, depth and reliable knowledge.

By Hristo Popov on 5/26/2024

This course provides the basic concepts, and is highly recommended for the uninitiated.

By Latha Chowla sunil on 1/3/2024

I liked the fish model, Regression model and how to derive the measures.

By Anastas Markov on 6/25/2023

A very practical and all-encompassing course that complements my existing business knowledge.

By Wojtek Pawlak on 6/10/2023

So far, I'm getting a great deal of valuable information from the course and can clearly see how to use certain techniques to make my work better.

By Andrei Dimitrow on 11/30/2022

The lecturer is well spoken and used great examples to help understand better the topic

By Karl Kornowski on 11/26/2022

Plowing WAY too fast through the complex technical data... Other spots is remedial

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Overall Score : 92 / 100