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Posts in Software Engineering

All posts in Software Engineering in chronological order with newest first.

Posts in Software Engineering

The seven wastes of software development
Jan 13, 2026 software-engineering

The seven wastes of software development

Lean Thinking is more than just a set of management tools; it is a philosophy centered on maximizing customer value while relentlessly eliminating waste. At its core, it challenges us...

#agile #project-management #quality-assurance
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Nov 11, 2025 software-engineering

AI Crosses from Exploration into Engineering

The Thoughtworks Technology Radar has always been more than a list of tools. It captures what happens when technology moves from experimentation to everyday practice. In its 33rd edition, one...

#ai #gen-ai #thoughtworks
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Nov 01, 2025 software-engineering

Announcing NKP 0.1: Static Analysis for Kotlin Projects

I’m excited to share the first MVP release of NKP (aNalysis of Kotlin Programs), a command-line tool for analyzing Kotlin codebases and uncovering architectural insights.

#jvm #architecture #kotlin #object-functional #quality-assurance
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Java in the Technology Radar
Sep 03, 2025 software-engineering

Java in the Technology Radar (JavaSpektrum)

I’ve written a new article for JavaSpektrum: “Java im Technology Radar – Totgesagte leben länger”. The piece looks back at Java’s journey through the eyes of the Thoughtworks Technology Radar...

#java #article #jvm #thoughtworks
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Structured Concurrency in Java 24
Mar 31, 2025 software-engineering

Structured Concurrency in Java 24 (JavaSpektrum)

I’ve written an article for JavaSpektrum 2/2025 about Structured Concurrency in Java 24. The article covers JEP 499, Java’s fourth preview of Structured Concurrency, which aims to make concurrent programming...

#java #concurrency #article #jvm #parallelism
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Coroutines in Kotlin at KKon 2021 Warmup
Apr 23, 2021 software-engineering

Coroutines in Kotlin at KKon 2021 Warmup

In my talk “Nebenläufigkeit mit Koroutinen strukturieren” at the KKon 2021 Warmup I explained how to structure and organize concurrent programs with coroutines in Kotlin.

#kotlin #parallelism #concurrency #talk #slides
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Refactoring with the Mikado Method
Apr 02, 2020 software-engineering

Refactoring with the Mikado Method

At a client of ThoughtWorks I gave a talk about refactoring in line with the book “Mikado Method”. The book describes a method to plan and perform non-trivial refactorings of...

#tdd #talk #slides #clean-code
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Plain react, hooks and/or Redux
Mar 04, 2020 software-engineering

Plain react, hooks and/or Redux

At a client of ThoughtWorks I gave a short presentation about three different ways of state management in React.

#talk #slides #javascript #front-end
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Weniger warten, asynchron arbeiten
May 06, 2019 software-engineering

Coroutines in Kotlin and Go on heise Developer

In the article “Weniger warten, asynchron arbeiten” (less waiting, asychronous working) published by heise Developer I explain the theoretical background of coroutines and how to use them in Kotlin and...

#article #kotlin #concurrency #parallelism #golang
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Concurrency in Kotlin with coroutines
Apr 23, 2019 software-engineering

Concurrency in Kotlin with coroutines

Coroutines are a “new” way to handle concurrency on the JVM. I gave an introduction to coroutines in Kotlin at Thoughtworks. This is basically the translation of the german slides....

#slides #talk #kotlin #concurrency #parallelism #jvm
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Jan 02, 2019 software-engineering

Fusion of object oriented and functional programming

The fusion of Object Oriented Programming (OOP) and Functional Programming (FP) languages has become increasingly popular in recent years, with many programming languages now offering features and constructs from both...

#kotlin #object-functional #scala #functional-programming
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Jul 22, 2017 software-engineering

EuroClojure 2017 in Berlin

In my first project for ThoughtWorks the backend is written in Clojure. Since the project was in Berlin, I visited the EuroClojure 2017 which takes place in Berlin this year,...

#jvm #functional-programming
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Feb 01, 2017 software-engineering

Working for ThoughtWorks

After long considerations i decided to quit being a freelancer and joined ThoughtWorks in Hamburg, Germany.

#thoughtworks
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Ambient Occlusion example
Jul 08, 2015 software-engineering

Ray tracing with Groovy and Java

While I was reading the excellent book by Kevin Suffern "Ray tracing from the ground up", I implemented a ray tracer in Java and wrote a DSL in Groovy, to...

#groovy #java #model-driven #jvm #graphics
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Jul 06, 2015 software-engineering

Covariance and Contravariance in Scala

The topic of covariance and contravariance is explained in many places (including Wikipedia). This post is my attempt to explain it in my own words, using Scala.

#scala #jvm #object-functional
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Jun 17, 2015 software-engineering

A very good introduction to Scala

Scala is an important milestone in the fusion of functional and object-oriented programming. This fusion is not yet complete, but rather a “discovery process” that will continue for a few...

#scala #review #jvm #object-functional
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Apr 04, 2015 software-engineering

OO with JavaScript Excellently Explained

JavaScript has a prototype-based approach to object orientation. This makes it very different from the common object-oriented programming languages, such as Java, C++, and Ruby.

#javascript #review
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Mar 03, 2015 software-engineering

Examples for parallelism: ray tracer

I wanted to learn some frameworks for parallel computing and i decided to implement a simple ray tracer as a "visual benchmark".

#c++ #java #graphics #parallelism #concurrency
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Jan 29, 2015 software-engineering

Advanced 'git'

I have been using git for a few years now, but I wanted to gain more background knowledge and learn about more complex workflows. The book “Git in Practice” succeeded...

#review
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Jan 27, 2015 software-engineering

Too Short an Introduction to PaaS

“Understanding PaaS” is a very small booklet about the basics of cloud computing. It can be read to get a very quick introduction to the topic. It is written more...

#review
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Jan 16, 2015 software-engineering

An Almost Definitive Introduction to MongoDB

“MongoDB: The Definitive Guide” is a well-rounded overview of MongoDB from both a developer and a DBA perspective. At least as far as I can tell as a MongoDB beginner...

#review #data #javascript
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Java 8 in Action
Dec 17, 2014 software-engineering

Reviewer of Java 8 in Action

I bought the book in early access (MEAP) and decided to help as a reviewer.

#review #java #scala #jvm #object-functional
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Dec 17, 2014 software-engineering

“Sophisticated” JavaScript

If there is such a thing as “sophisticated” literature, then there is now also “sophisticated” code. “If Hemingway Wrote JavaScript” contains many funny and educational examples.

#javascript #review
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Feb 11, 2014 software-engineering

A Good Overview of C++ 11

In this small book, the creator of C++ provides an overview of the new features in C++ 11 and the STL.

#c++ #review
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Jul 30, 2013 software-engineering

Tips of very varying quality

The book “97 Things Every Programmer Should Know” consists of 97 sections by different authors regarding frequently occurring questions in software development.

#review
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Dec 01, 2011 software-engineering

Very good in places, unpolished and too brief in others

Programming parallel and concurrent programs with shared memory and threads is complicated and very error-prone. Approaches such as Software Transactional Memory (STM), message-passing architectures, and actor models have been developed...

#parallelism #concurrency #jvm #review #object-functional
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Nov 15, 2011 software-engineering

Only for 'Thread Monkeys'

With the title “The Art of Concurrency”, high expectations are set that are not met. The subtitle “A Thread Monkey’s Guide to Writing Parallel Applications” is more fitting for the...

#review #parallelism #concurrency #c++
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Apr 07, 2010 software-engineering

Sony Alienates Early PlayStation 3 Fans

On April 1st, Sony released an update for the PlayStation 3 that discontinued support for Linux. This move angered many, sparking intense reactions and discussions.

#parallelism #concurrency
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Training: Ant in Depth
Oct 09, 2009 software-engineering

Training: Ant in Depth

Apache Ant offers a lot of capabilities that many teams never end up using. This training dives into Ant’s more advanced features (as of 2009).

#slides #jvm
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Aug 01, 2009 software-engineering

Groovy, EMF and UML2

I wrote the Groovy EMF builder and the Groovy UML2 builder. These tools use the builder concept of the programming language Groovy to ease the processing of Eclipse Modelling Framework...

#groovy #eclipse #model-driven #jvm #java
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Feb 27, 2008 software-engineering

Memoization in Groovy with a Decorator

Memoization is a well known optimization technique to avoid repeated calculations. With dynamic programming languages like Groovy it is possible to extend the behaviour of an already exisiting class at...

#groovy #jvm
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Jan 27, 2008 software-engineering

Accessing EMF models with JRuby

JRuby provides access to Java packages, so it is possible to use packages created with the Eclipse Modeling Framework (EMF).

#ruby #model-driven #jvm
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Writing Eclipse plugins with Groovy
Jan 17, 2008 software-engineering

Writing Eclipse plugins with Groovy

Writing plugins for Eclipse with other languages than Java is not officially supported, but there is a way to write an Eclipse plugin with Groovy only.

#groovy #eclipse #jvm #java
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Dec 01, 2007 software-engineering

Eclipse BugDays 2007

I participated at Eclipse BugDays in July, August, September, October, and November 2007 and helped debugging the Eclipse projects JDT, PDE/UI, and ECF.

#eclipse #jvm #java
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Nov 29, 2007 software-engineering

Using UML2 with Groovy

The UML2 project provides an EMF based implementation of the UML 2.x metamodel in Java. With the EMFBuilder it is possible to create and process UML2 models.

#groovy #eclipse #model-driven #jvm
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Rapid Application Development with Groovy
Nov 01, 2007 software-engineering

Rapid Application Development with Groovy

While i was cleaning up my hard disk on my Linux in 2007, i needed a program that displays the disk usage graphically. I didn't find a suitable one on...

#groovy #jvm #parallelism #concurrency
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Using EMF with Groovy
Oct 22, 2007 software-engineering

Using EMF with Groovy

This article shows how Groovy can be used with the Eclipse Modeling Framework (EMF).

#groovy #eclipse #model-driven #jvm
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Editor for the Common Warehouse Metamodel (CWM)
Oct 01, 2007 software-engineering

Editor for the Common Warehouse Metamodel (CWM)

The Common Warehouse Metamodel (CWM) is a standard by the Object Management Group (OMG). The intention of CWM is to define a standard for metadata in Data Warehouses and Business Intelligence applications.

#groovy #eclipse #model-driven #jvm #data
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Eclipse SQL Editor Plugin
Mar 07, 2006 software-engineering

Eclipse SQL Editor Plugin

I wanted to find out how hard it is to build a language editor in Eclipse. Back then I didn’t know of any open-source SQL editor (and there wasn’t one...

#eclipse #jvm #java
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The Graphical Editor Framework (GEF)
May 10, 2005 software-engineering

Graphical Editors with Eclipse

Over Christmas 2004, I built an EMF plugin for family trees. Around Easter 2005, I finally found the time to develop a GEF-based editor for it.

#eclipse #jvm #java
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May 07, 1996 software-engineering

Dynamic Scheduling in Real-Time Systems

In this seminar paper (1996), written during my graduate studies in computer science, I cover scheduling algorithms for distributed real-time systems.

#parallelism #concurrency #algorithms #distributed
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