Category: Architecture
All things about one of our strongest passions, coding architecture.
Anatomy of an Open-Source AI Coding Agent Built in .NET: CodeAlta
May 31, 2026 9 minutes read A large language model doesn’t perfom any action. It reads text and writes text. That is the whole contract. So how does an “AI...
An Introduction to Clean Architecture
May 25, 2026 3 minutes read Clean Architecture in C# and .NET: A Detailed Introduction It seems to me that the topic of software architecture has attracted a lot of...
SOLID Design in C#: The Open-Close Principle (OCP)
May 25, 2026 9 minutes read The Open-Closed Principle (OCP) is the “O” in SOLID, the five object-oriented design principles every C# and .NET developer eventually runs into. In one...
Onion Architecture: Going Beyond Layers
April 25, 2026 1 minutes read So you’ve read about the Onion Architecture and think you get it. There are layers in this architecture. They’re onion-like. And they make your...
Hexagonal Architecture: What Is It and How Does It Work?
April 23, 2026 9 minutes read Hexagonal architecture is a model — or pattern, if you prefer — for designing software applications around a simple idea: put inputs and outputs...
Domain-Driven Design Demystified
April 4, 2026 1 minutes read Domain-Driven Design, usually shortened to DDD, is a software design approach that puts the business problem at the center of the code. Instead of...
REST vs. RESTful: The Difference and Why the Difference Doesn’t Matter
April 2, 2026 1 minutes read REST API is one of the most popular APIs in the web development community. Most teams reach for it before anything else, and most...
Software Architecture: The 5 Patterns You Need to Know
February 26, 2026 2 minutes read When I was attending night school to become a programmer, I learned several design patterns: singleton, repository, factory, builder, decorator, etc. Design patterns give...
Layered Architecture: Still a Solid Approach
February 7, 2026 1 minutes read Layered architecture gets a lot of flack. Even though it’s still the most prevalent architecture, we view it as an anti-pattern. It’s old, not...
Architecture of a .NET Application: 8 Case Studies
July 10, 2025 8 minutes read This recent question on Reddit’s Number of projects per solution led to interesting debates. The answer depends on the app’s size and domain. In...
Clean Architecture in ASP.NET Core
July 7, 2025 9 minutes read As applications scale, flexibility and maintainability become essential. .NET Core Clean Architecture provides a clear structure with minimal dependencies, making it a popular choice....
Vertical Slice Architecture in ASP.NET Core
June 10, 2025 6 minutes read The organization of code in a solution is a subject of frequent debates. Currently, two prominent approaches have garnered attention: Clean Architecture versus Vertical...
High .NET Code Maintainability: A Case Study
February 13, 2024 8 minutes read High .NET Code Maintainability is the key to achieve both happy management and happy developers: Maintainability lets a product evolve naturally at a sustained...
Software Architecture Document? Do You Need One?
November 1, 2023 1 minutes read In the spirit of the Agile Manifesto, we’ve reduced our dependence on software documentation. In some ways, this has improved our lives. And in...
5x Lessons Learned from Migrating a Large Legacy to .NET Core
October 26, 2021 9 minutes read In January 2020 I wrote the post Not planning now to migrate your .NET 4.8 legacy, is certainly a mistake. Hopefully we followed our...
Clean Architecture Refactoring: A Case Study
April 27, 2021 9 minutes read Introduction to Clean Architecture The recent post Clean Architecture for ASP.NET Core Solution: A Case Study explained that one of the most interesting property...
8 Books to Improve as a .NET Developer
March 31, 2021 4 minutes read Nowadays all information a developer needs to know is available online for free. Blogposts and videos authored by experts, giant questions and answers websites,...
How to Plan Large-Scale Refactoring?
February 23, 2021 6 minutes read The .NET platform exists for two decades and nowadays the technology is evolving faster than ever. It is now time for serious .NET...
How we quickly refactored with Resharper more than 23.000 calls to Debug.Assert() into more meaningful assertions
January 11, 2021 6 minutes read Since the NDepend inception more than 15 years ago, we stuffed our code with calls to Debug.Assert(). This results today in more than 23.000...
Code Smell – Primitive Obsession and Refactoring Recipes
December 1, 2020 5 minutes read Primitives are the real building blocks of your class and its use is obviously inevitable. But the real problem starts when they are not...
Visualize Code with Software Architecture Diagrams
November 10, 2020 9 minutes read The source code is the design. This famous motto means that no matter how many diagrams you draw and discuss with your colleagues, the...
When your brain can’t handle the complexity: NDepend and PostSharp
November 2, 2020 5 minutes read The size and complexity of codebases have exploded in the last decade. What can you do when your codebase no longer fits your brain?...
Architecture of a C# game rendered with Blazor, Xamarin, UWP, WPF, and Winforms
September 15, 2020 5 minutes read When I wrote my last post Blazor Internals you need to know I came across this great project on github: AsteroidsWasm. This project is...
Blazor Internals you need to know
September 3, 2020 9 minutes read Lately the Blazor technology received a lot of attention both from Microsoft and from the .NET community. Blazor is a UI technology. The ASP.NET...
Top 10 Visual Studio Refactoring Tips
July 7, 2020 6 minutes read With the version 2019 Visual Studio is now mature when it comes to refactoring. This post proposes a tour of the top 10 most...
Case Study : Complex UI Testing
April 29, 2020 6 minutes read In the previous post Case Study: 2 Simple Principles to achieve High Code Maintainability I explained that the principles layered code + high coverage...
Mythical man month : 10 lines per developer day
February 10, 2020 4 minutes read The mythical book, Mythical man month quotes that no matter the programming language chosen, a professional developer will write on average 10 lines of code...
Business Complexity vs. Implementation Complexity
September 19, 2019 6 minutes read It is good software design practice to make sure that methods can be entirely viewed in the code editor that typically shows 30 to...
Static Analysis and Dependency Injection
September 3, 2019 4 minutes read For quite some years now, we (the NDepend team) got some demand about resolving Dependency Injection, see this page on our User Voices. Lately...
Service Oriented Architecture: A Dead Simple Explanation
January 8, 2019 1 minutes read Service-oriented architecture (SOA) has been with us for a long time. The term first appeared in 1998, and since then it’s grown in popularity....