Blog

Mert Özen's blog posts on software development, backend, frontend, and DevOps.

Series

.NET Core Web API 36 Angular 31 JavaScript Basics 19 JavaScript Intermediate 18 JavaScript Advanced 16 TypeScript Basics 14 TypeScript Intermediate 14 TypeScript Advanced 12 Entity Framework Core 28 Dapper 16 Git & GitHub 29 Web Security (OWASP Top 10) 21 LLM Fundamentals 20 C# Fundamentals 20 Object-Oriented Programming in C# 16 C# Collections and Generics 11 LINQ 17 Asynchronous Programming in C# 17 Advanced C# 14 C# Versions 6 Solution Patterns 22 SOLID and Design Principles 12 Clean Code 13 Design Patterns 23 UML and Modeling 18 Introduction to Software Architecture 9 Clean, Onion and Hexagonal Architecture 8 Vertical Slice Architecture 6 Domain-Driven Design 12 CQRS and Event Sourcing 10 Messaging and Event-Driven Architecture 9

2 posts found #eventstorming

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Software Architecture PART 14

The Evolution of DDD and Common Mistakes: From the Blue Book to Dynamic Consistency Boundaries

DDD's most common mistake is skipping the strategic design left at the end of the Blue Book and taking only tactical words like entity, repository, and base class. A history from Evans's 2003 book to the DDD Reference, Vernon's aggregate rules, EventStorming, Team Topologies and Khononov, and the Dynamic Consistency Boundary that questions the aggregate; with an in-memory DCB example and a reading route after the series.

7 Nov 2026 13 min 5

Software Architecture PART 06

Discovering the Domain with EventStorming: From Big Picture to Aggregates

EventStorming is a workshop format that brings domain experts and developers to a shared language by placing what happens in the domain on a timeline as orange, past-tense stickies. We take Bookstore's order flow through the Big Picture, Process Modeling and Software Design levels and turn the hot spots, pivotal events, policies and aggregate candidates from the wall into code.

7 Nov 2026 12 min 6