#548: Event Sourcing Design Pattern

Dieses Buch bietet eine klare und praxisnahe Einführung in Event Sourcing und Event Modeling. Es verbindet diese Konzepte mit Vertical Slice Architectures zu einem konsistenten Softwareprozess und zeigt, wie man von der Idee bis zum lauffähigen System kommt. Der Autor taucht tief in die Grundlagen, Modellierung und Implementierung ein, inklusive CQRS, und ergänzt es kontinuierlich mit neuen Kapiteln.

This work delves into the transformative power of CQRS and Event Sourcing in Domain-Driven Design, explaining how separating read and write models creates clean, scalable architectures. It emphasizes shifting focus from data to business events and behaviors, enabling flexible projections, immutability, and adaptability without altering core code. Rico Fritzsche highlights practical benefits like improved performance, robustness, and alignment with real-world domain actions, making it ideal for complex systems.

Domain-Driven Design (DDD) is a software design approach introduced by Eric Evans in 2003. The book emphasizes the importance of understanding the business domain and creating software models that closely reflect this domain. Key concepts include the use of a Ubiquitous Language, Domain Modeling, Entities, Value Objects, Services, Aggregates, and Repositories. The book also discusses Bounded Contexts, which help in managing complex domains by decomposing them into smaller, more manageable parts. Evans stresses the iterative process of refining the model through continuous collaboration between developers and domain experts, ensuring that the software design is driven by the domain rather than by technology or frameworks.