bestcourses is supported by learners. When you buy through links on our website, we may earn an affiliate commission. Learn more

Understanding SOLID: Learn SOLID Design for C# Course

The complete guide to great design for C# programmers

4.35 / 5.0
73 students2 hours 33 minutes

Created by Chuck McCullough, offered on Udemy

bestcourses score™

Student feedback


To make sure that we score courses properly, we pay a lot of attention to the reviews students leave on courses and how many students are taking a course in the first place. This course has a total of 73 students which left 19 reviews at an average rating of 4.35, which is below the average.

Course length


We analyze course length to see if courses cover all important aspects of a topic, taking into account how long the course is compared to the category average. This course has a length of 2 hours 33 minutes, which is pretty short. This might not be a bad thing, but we've found that longer courses are often more detailed & comprehensive. The average course length for this entire category is 4 hours 58 minutes.

Overall score


This course currently has a bestcourses score of 4.2/10, which makes it an below average course. Overall, there are most likely better courses available for this topic on our platform.


This course dives into the aspects of software engineering that produce both great and failed software.  We start off by looking at our goals for design, the common smells, process and the SOLID principles.  This course reinforces best practices using the experiences of the course author and instructor, Chuck McCullough.  As a practicing software engineer for over 30 years and having completed dozens of projects, he has the insights to cut through the theoretical and jump right to the important stuff!

Why choose this course?  Microsoft uses Chuck's courses to train their developers internally.  Chuck's courses have been delivered to thousands of developers in-person, online and via Udemy, including  major corporations, government agencies and military around the world.

There is no silver bullet or magic formula for great design.  Design is part art and part science and many design concepts are difficult to explain and grasp.  This course focuses on the issues of design in as simple and concise way possible.  Chuck also communicates that it is not necessary to implement all SOLID principles to have a great design.  In fact, many designs are overly complicated because the designers were unbending in SOLID principles - this is one of the many design smells that Chuck addresses in the course.

Using C# to demonstrate with lots of hands-on labs, this course teaches:

  • Design Goals - What are we trying to accomplish?

  • Design Smells - How to identify and objectively articulate bad design choices.

  • Test Driven Development and minimalistic design and implementation - Avoid overdesign and facilitate design changes.

  • Process - What are the best ways to proceed with software development and measure progress.

  • Single Responsibility Principle - Only one reason to change

  • Open/Close Principle - Open for business, closed for modification

  • Liskov's Substitution Principle - a subtype can do more and require less

  • Interface Segregation Principle - interfaces are for clients

  • Dependency Inversion Principle - don't call us, we'll call you!

This course is full of examples and hands-on opportunity along with 24/7 access to help and immediate feedback on labs.

What you will learn

  • SOLID Design Principles
  • How to recognize and correct design smells
  • How to use design patterns to address common design issues
  • Minimalistic design and implementation in line with Agile and Extreme Programming
  • How to design great software


  • Experience coding in C#
  • Experience with object-oriented design
Udemy logo
Available on


With almost 200,000 courses and close to 50 million students, Udemy is one of the most visited online learning platforms. Popular topics include software development, the digital economy, but also more traditional topics like cooking and music.

Frequently asked questions

  • Price: $19.99
  • Platform: Udemy
  • Language: English
  • 2 hours 33 minutes
Understanding SOLID:  Learn SOLID Design for C# Course thumbnail

bestcourses score: 4.2/10

There are most likely better courses available for this topic.