Crafting Great APIs with DDD

How do you craft great APIs? How is it self-explanatory and straightforward to use? Will it cover the business needs? Is the interface synchronous or asynchronous?
We will discuss these questions and show how business and IT can build beautiful APIs in collaboration. We will introduce you to Domain Storytelling and Event Storming methods in conjunction with domain-driven design (DDD) and explain how these methods can help to derive designs for synchronous and asynchronous interfaces.

Full speed ahead! - How to steer a 130-year-old world-leading insurance business towards simplicity

Embark with us on the journey of how to simplify a complex landscape in a 130-year-old world-leading insurance powerhouse.

Business has the urgent need to adapt quickly and efficiently to new challenges and customer needs. For that reason, we implemented an event-driven architecture (EDA) based on verticals & microservices.

Discussing the issues to be solved and hurdles to be taken in order to implement event-driven architecture in a complex landscape.

We want to demonstrate our ideas, mindset, approaches, and solutions for various aspects of a complex corporate environment. Thus, you might benefit from our lessons learned and get some inspiration for your transformation journey.

We’ll put a spotlight on our methods for communication, mindset change, technical enablement, training, governance, and onboarding for you to get some inspiration.

Join us on our journey!

Cutting Edge Event Driven Architecture on Kubernetes: Taking Wasm for a Spin

Event-driven architectures are becoming increasingly popular for building scalable and responsive systems. In this talk we will explore how WebAssembly (WASM) can enhance event-driven architecture on Kubernetes when combined with Knative and KEDA. We'll focus on building autoscaling event processing systems, showcasing practical examples, and discussing the benefits and challenges of this approach. Join us to learn about the exciting possibilities of integrating WASM into Kubernetes environments for more efficient and faster event processing at scale.

An introduction to Helm

In this talk, we will explore Helm 3, a graduated CNCF project, and its capabilities. We will show how to work with it, best practices, how to avoid common pitfalls, how you can publish your own charts, and how to integrate it into your development workflow. At the end, we also take a look at helmfile and how it can improve your helm and Kubernetes experience even more.

Domain-driven API Design

Der Vortrag diskutiert diese Fragen anhand eines Beispiels. Es werden die Methoden Domain Storytelling und Event Storming benutzt. Aus der daraus folgenden Context Map entstehen schöne APIs, die Entwickler nicht hassen.

1. Einführung in das Beispiel "Online Bibliothek" mit Domain Storytelling und Visual Glossary
2. Context Map auf der Basis eines Event Stormings
3. Diskussion der notwendigen Schnittstellen - synchron und asynchron
4. Skeleton der Schnittstellen mit KI
5. Anpassen der Schnittstellen und Mockup
6. Fazit und weiteres Vorgehen

Einführung in Helm: Die bessere Art Kubernetes-Anwendungen zu managen

Kubernetes ist eines der verbreiteten Container Orchestration Systeme. Doch das Bereitstellen von Ressourcen via YAML-Manifesten ist nicht immer einfach. Oft endet es in viel Copy-Paste und nicht immer nachvollziehbaren Anpassungen.

Dieses Problem kann umgangen werden, wenn man die Kubernetes Manifeste wie Applikationen als Pakete deployed und verwaltet. Dies ist mit Helm möglich!

In diesem Vortrag werden wir Helm 3 genauer unter die Lupe nehmen. Helm ist ein Open Source Projekt, das von der Cloud Native Computing Foundation (CNCF) betreut wird. Es hat den Graduated-Level erreicht, was bedeutet, dass es von der CNCF als stabil und bereit für den produktiven Einsatz ist. Helm dient als Paketmanager für Kubernetes und bietet leistungsstarke Funktionen zur Verwaltung von Kubernetes-Ressourcen, gesamten Anwendungen und ihren Abhängigkeiten. Wir lernen mit Helm 3 zu arbeiten und lernen Best-Practices kennen. Zusammen lernen wir auch mit Tücken umzugehen.

Helm verwendet Charts zur Verwaltung von Applikationen. Wir gehen durch den Chart Erstellungsprozess, lernen kennen, wie man Charts anpassen, diese in eine CI/CD Prozess einbinden und veröffentlichen kann. Am Ende werfen wir auch einen Blick auf helmfile und schauen, wie es den Helm- und Kubernetes-Umgang noch weiter vereinfachen kann.

Streaming & Eventing for Top Management

Developers love event-driven architecture (EDA) and streaming with the latest technologies—and they’re often the easiest to evangelize.

The real challenge lies in convincing top management and C-level executives of the value of reinvesting in yet another emerging technology and understanding the paradigm shift it brings.

At Allianz in Germany, we've spent years driving the transformation to EDA. Our journey has involved convincing stakeholders at all levels—including upper management—of its tangible business benefits.

In this talk, we’ll share our strategy for promoting EDA across the organization, with a focus on how we successfully communicate its value to top decision-makers.

Key Takeaways:

✅ Different stakeholders require tailored messaging—one size does not fit all.

✅ Communication is critical: leverage all available formats and speak about your topic frequently.

✅ Business cases from other companies are helpful, but internal success stories are even more powerful.

✅ Go beyond technology—tie EDA directly to business processes and outcomes.

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