Your Domain Model Belongs in the Repository, Next to the Code
Why a domain model belongs in the repository as versioned plain text, with a live demo of ESDM.
No recording
Resources / Library
Library
Papers, talks, interviews, podcasts, and videos about events, from us and with us – each one where it was published, and found here by its topic.
ModelingModel it.22
ESDM: So coden wir alle in der Zukunft
ESDM keeps the domain model next to the code, instead of on a whiteboard photo or a forgotten wiki page.
#14 – Das Schreiben von Code war eigentlich nie das Problem
Why writing code was never the problem, with chapters on Domain-Driven Design, Event Sourcing, and ESDM.
CRUD, Event Sourcing & DDD – Why Teams Misunderstand Their Domain
An interview at the Software Architecture Gathering 2025 on why teams misunderstand their domain.
Fachlichkeit, Architektur & KI
An Ask Me Anything livestream with Sebastian Voina-Winter of open200 on the domain, architecture, and AI.
Dynamic Consistency Boundaries (DCB): Nie wieder Aggregates schneiden!
Dynamic Consistency Boundaries as an alternative to aggregates for modeling where consistency is needed.
Der Denkfehler einfacher Architekturen
A conversation with open200 about the mistake in thinking behind simple architectures.
Event-Modeling in der Praxis
Event Modeling in practice, live with Nikolai Neugebauer of Digital Frontiers.
CRUD war gestern: Software fachlich modellieren
How to model software in terms of its domain rather than its data.
Die 5 größten Probleme von Domain-Driven Design (DDD)
The five biggest problems of Domain-Driven Design, and why they lie in how it is usually taught.
Context-Mapping: So einfach kann DDD sein!
Context Mapping in Domain-Driven Design, explained plainly.
Microservices: Mehr als Bounded-Contexts – oder?
Whether a microservice and a bounded context are really the same thing.
Domain-Storytelling (von Stefan Hofer und Henning Schwentner)
A review of the book on Domain Storytelling by Stefan Hofer and Henning Schwentner.
API-Patterns: Shared Kernel, Anti-Corruption Layer & Co. – wie bitte?!
The patterns between bounded contexts, such as Shared Kernel, Open Host Service, Conformist, and Anti-Corruption Layer.
Core-, Supporting-, Sub-, WTF-Domains in Domain-Driven Design (DDD)
The kinds of subdomains in Domain-Driven Design, and whether you need to know them all.
Subdomains vs Bounded-Contexts in Domain-Driven Design (DDD)
The difference between subdomains and bounded contexts, explained plainly.
Einführung in Domain-Driven Design (von Vlad Khononov)
A review of the introduction to Domain-Driven Design by Vlad Khononov.
Domain-Driven Design (DDD) Deep-Dive
A deep dive into Domain-Driven Design, live, from its ideas to its building blocks.
Software fachlich denken
Why software is not an end in itself, and how to think about it in terms of its domain.
So gelingt DDD
What it takes for Domain-Driven Design to succeed, starting with a ubiquitous language.
Fachliche Namensgebung
How to find names from the domain that make code readable and understandable.
Deep Dive 57 – DDD, Event Sourcing und CQRS mit Golo Roden von the native web
A deep dive into Domain-Driven Design, Event Sourcing, and CQRS.
RememberingRemember it.19
DWX hakt nach: Event Sourcing, CQRS & Data Mesh – Golo Roden im Interview
An interview at the DWX on Event Sourcing, CQRS, and Data Mesh.
Sovereignty Is the Ability to Leave
Why Digital Sovereignty Is an Architecture Decision Before It Is a Procurement Decision
Real sovereignty is the ability to leave, and that is decided in your architecture – down to the most portable form your data can take.
Alles rund um CQRS und Event-Sourcing
An evening about CQRS and Event Sourcing at the .NET User Group Karlsruhe.
No recording
… und dann DELETED der Wolf die Großmutter
Why CRUD fails at the processes of a domain, and how Event Sourcing and CQRS do better.
No recording
You Don't Even Know Your Most Important Questions Yet
How Event Sourcing Makes the Past Your Most Valuable Asset
Most systems store only the current state; Event Sourcing keeps what happened, for audits, analytics, and the questions you cannot foresee.
CRUD, Event Sourcing & DDD – Why Teams Misunderstand Their Domain
An interview at the Software Architecture Gathering 2025 on why teams misunderstand their domain.
… and Then the Wolf DELETED Grandma
Little Red Riding Hood, told with CRUD – and why Event Sourcing keeps the story.
No recordingWritten version
EventSourcingDB: Das ist neu in Version 1.1
What is new in version 1.1 of EventSourcingDB.
Dynamic Consistency Boundaries (DCB): Nie wieder Aggregates schneiden!
Dynamic Consistency Boundaries as an alternative to aggregates for modeling where consistency is needed.
EventSourcingDB FAQ: Eure Fragen, unsere Antworten
Answers to the questions about EventSourcingDB after its launch, from its background to its concepts and operation.
EventSourcingDB: Live-Demo und Q&A
A live demo of EventSourcingDB – its features, how it differs from classic databases, and questions from the audience.
EventSourcingDB – die neue Datenbank für Event-Sourcing ist da
The launch of EventSourcingDB, a database built for Event Sourcing, and what it offers.
#183 Event-Sourcing: Die intelligente Datenarchitektur mit semantischer Historie
Event Sourcing as a data architecture that keeps the meaning of what happened.
CQRS – das einzige Video, das Du brauchst
What CQRS is, the idea behind it, what it is good for, and how it works.
Event-Sourcing – das einzige Video, das Du brauchst
Why CRUD falls short, and how Event Sourcing keeps the whole history of your data instead.
#162 Event Sourcing & Märchen mit Golo Roden von the native web
Event Sourcing, explained with a fairy tale.
CRUD ist ein Anti-Pattern, oder: Wie ich lernte, Event-Sourcing zu lieben
Why CRUD is an anti-pattern, and what Event Sourcing does instead.
No recording
CRUD? Bloß nicht!
Why CRUD, the most common way to develop software, is not as good an idea as it seems.
Deep Dive 57 – DDD, Event Sourcing und CQRS mit Golo Roden von the native web
A deep dive into Domain-Driven Design, Event Sourcing, and CQRS.
BuildingBuild on it.9
Nimbus: CQRS mit TypeScript
CQRS and Event Sourcing in TypeScript with Nimbus, live with Daniel Gördes of Overlap.
#14 – Das Schreiben von Code war eigentlich nie das Problem
Why writing code was never the problem, with chapters on Domain-Driven Design, Event Sourcing, and ESDM.
Fachlichkeit, Architektur & KI
An Ask Me Anything livestream with Sebastian Voina-Winter of open200 on the domain, architecture, and AI.
OpenCQRS 1.0: Event-Sourcing für die JVM
OpenCQRS 1.0 brings Event Sourcing and CQRS to the JVM, on top of EventSourcingDB.
Hexagonale Architektur – die Architektur der Zukunft?
Hexagonal architecture keeps the domain apart from technology, so that changes and tests stay easy.
Der Denkfehler einfacher Architekturen
A conversation with open200 about the mistake in thinking behind simple architectures.
Live coden mit OpenCQRS
Live coding with OpenCQRS, the framework for the JVM by Digital Frontiers, with Frank Scheffler.
12 Regeln für die perfekte (Micro-)Service-Architektur
Twelve rules for building services that are small, focused, and true to their domain.
Was ist eine Task-basierte UI?
Task-based UIs put the tasks of their users first, instead of forms over data.
IntegratingIntegrate it.1
Was sind CloudEvents?
The CloudEvents standard, and why two parties that both work with events do not necessarily mean the same by them.
LearningLearn from it.5
How Event Sourcing Makes AI Actually Understand Your Business
Event Sourcing and CQRS as the foundation for AI that understands the domain, with events as data products.
No recording
DWX hakt nach: Event Sourcing, CQRS & Data Mesh – Golo Roden im Interview
An interview at the DWX on Event Sourcing, CQRS, and Data Mesh.
Eine zukunftsfähige Architektur für Daten, KI und Analyse
Event Sourcing and CQRS as the foundation for consistent data that analytics and AI can build on.
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Architektur im datengetriebenen Zeitalter
What architecture has to do when data drives the business.
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Event-Sourcing + KI: Das Fundament für bessere KI-Modelle
Why the quality and structure of your data decide the success of AI, and how Event Sourcing lays the foundation.
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