Object-Oriented System Design in C# and .NET

Building robust, maintainable software requires a deep understanding of core design principles and modern architecture concepts. This text-based course guides you through foundational object-oriented programming concepts in C# and .NET, helping you structure complex applications with confidence. You will start with key terminology and fundamental building blocks before moving toward effective system design patterns. What you will learn: Understand foundational object-oriented programming concepts including encapsulation, inheritance, and polymorphism. Apply SOLID principles to write clean, maintainable, and extensible C# code. Implement modern C# features such as record types, interfaces, and pattern matching for clear domain modeling. Utilize dependency injection and decoupled architecture patterns in modern .NET applications. Practice designing scalable software systems through structured written explanations and code examples. The course begins with essential terminology, class mechanics, and object-oriented foundations. As you progress, you will explore practical design patterns, architectural decoupling, and current .NET coding standards. This course is designed for beginner developers, software engineering students, and programmers learning C# who want to build a solid foundation in object-oriented design. Start reading today to elevate your software architecture skills.