Blog & Articles

Schema Evolution

Using Kafka, sooner or later you might want to describe a schema to specify your data structures. Since software continuously changes during it’s lifetime you’ll also have to evolve your schema. In this article we’ll discuss approaches and tools which can guide you in the realization of your schema evolution.

Article

Automated code maintenance with OpenRewrite

With the large number of software development projects in most organisations, keeping these projects up to date with the latest security patches and framework updates can be quite a task. OpenRewrite is a library that provides an automated solution to this problem. Using recipes written in Java, it can perform large-scale source code refactoring during the build process, preserving as much of the original code as possible. In this blog post, I will explain how OpenRewrite works and how you can use it to refactor your code base.

Blog Post

Micro Frontends With Ionic And Capacitor

Article

Die Ökonomie von Gut & Crypto I

Der Hype um Crypto-Technologien ist etwas abgeklungen. Ein guter Zeitpunkt, die Möglichkeiten und ihre soziotechnischen Aspekte strukturiert zu betrachten. Die folgenden Kolumnen betrachten einige der Themen, die im Zusammenhang mit Crypto-Technologien immer wieder benannt werden oder für die sie Lösungen versprechen.

Blog Post

Testing your GitLab CI/CD pipeline

If you develop a pipeline as a service for other development teams you should treat it as a product and establish product development processes, a versioning strategy, etc. around it. Besides that, as potentially many teams will use and rely on your pipeline you want to make sure that new features don’t break existing functionality. This ensures that your customer base remains happy and able to deliver business value. Therefore you need some sort of testing and we will demonstrate a way to (integration-) test your GitLab CI/CD pipeline.

Blog Post

Mit Reviews in Legacy-Situationen orientieren

Article

JDK 21, the next long-term support release

The newest JDK release, version 21, appeared on September 19th. A number of developers view it as a long-term support release that will be supported for at least the next five years. As many applications will presumably be updated to version 21 from JDK 17, the last long-term support release, we would like to take this opportunity to examine the relevant changes from 17 to 21.

Article

Containers for tests and local development with Spring Boot 3.1

Spring Boot 3.1.0, the most recent minor release of Spring Boot 3, appeared in May. In this article, we will be taking a look at how the new support for Testcontainers and Docker Compose can help us with tests and local development.

Article

Testing in Spring Boot applications

Slice it up, please

Blog Post

How to bootstrap a tech conference with a 100% women+ speaker lineup

A tech conference focused on data and AI in the midst of a hype around machine learning, and LLMs in particular. Fair enough. But what we had in mind when planning the first edition of the Women+ in Data and AI summer festival in 2023 went beyond the latest trends in data engineering, machine learning, data science, and MLOps. We wanted to celebrate the excellence of women+ in the field. And to take it a step further, we wanted to provide our speakers and attendees with a safe and supportive environment - not only for learning, but also for networking and personal growth. Did we succeed?

Article

No future-proof architectures!

Architecture: The term itself radiates stability. It seems clear, then, that good architecture should be future-proof. But precisely this goal often leads to problems. Does that mean it is better not to design future-proof architectures?

Article

Is Platform Engineering the new DevOps?

Article

Willkommen im Himmel

Der Weg in die Cloud ist für Unternehmen mit einer existierenden IT-Infrastruktur nach wie vor mit viel Skepsis verbunden. Neben Fragen zu Sicherheit und Datenschutz steht auch meist im Raum: Bringt die Nutzung der Cloud auch einen Mehrwert für das Unternehmen, für das Produkt und für diejenigen, welche an dessen Lebenszyklus (Design, Entwicklung, Betrieb etc.) beteiligt sind? Neben der Bereitstellung von Rechenkapazität bieten die „Big 3“ (AWS, Google Cloud, Azure) Dienste und Produkte an, welche genau diesen Mehrwert schaffen können. Der nachfolgende Artikel soll dazu ermutigen, diese Dienste zu nutzen, um den meisten Profit aus der Cloud ziehen zu können.

Blog Post

Concise Documentation – Revisited

You think architecture documentation is cumbersome and takes a long time to create? We will prove you wrong.

Article

Paradoxical Safety

Soziotechnische Welten – Teil 8

Article

Remote Mob Programming

The entire team is sitting in an online meeting and developing software together. One person types the code while the others discuss. Sound strange? That is remote mob programming, an exciting style of work for distributed teams. Read on to learn what it’s all about and which advantages and disadvantages you can expect.

Article

What is a Data Product?

A data product is a logical unit that contains all components to process domain data and provide data sets via output ports for analytical use.

Blog Post

Improve your CSP with Style Nonces in Angular 16

Enabling stricter content security policies in your SPA

Blog Post

A natural language calculator

In my prior post I’ve written about how to run a chat with a large-language-model on your PC. This time I want to focus on scripting this with Node.js and letting the AI- and the “normal”-world interact with each other.

Blog Post

Safety, Energieeffizienz und User Experience

Bei der Softwarearchitektur gilt es, ein Fundament für robuste und qualitativ hochwertige Softwaresysteme zu entwerfen. Softwarequalität beschränkt sich dabei nicht auf Attribute, die bereits während der Softwareentwicklung gewährleistet werden können. Ihnen zur Seite steht ein Block von Qualitätsmerkmalen, deren Ausprägung sich erst während der Softwarenutzung offenbart. Dieser Blogbeitrag beleuchtet diesen Block und dessen Zusammenhang mit Safety, Energieeffizienz und User Experience (UX).

Article

Accessibility on the Web Part 2

Accessible Content

Blog Post

Retrospektiven - Teil 7

Wir schließen den Kreis mit einigen Tipps zur Facilitation von Retrospektiven.

Blog Post

How we cut our website’s carbon emissions in half

Between 2010 and 2030, the environmental impact of the digital world is expected to triple. While network infrastructure and devices get more and more efficient, all of these improvements are eaten up by more and more people and devices being connected to the internet, but especially by websites which are becoming more and more bloated. On the desktop, the average page weight of a single web page is four times as much now as it was in 2010. On mobile devices, it’s even more dramatic: The average page weight is ten times as much as in 2010. In the summer of 2022, we decided that it’s about time that we take action and start decarbonising our company website.

Blog Post

Retrospektiven - Teil 6

Timeline

Blog Post

Does BI Software Make Sense for Development Teams?

Time is a valuable asset, and it is easily consumed by the analysis and preparation of data. In other words, there may be good reason to come to grips with BI software.