On October 23 DEWT and James Bach met in Dordrecht to talk about testing. The subject was “What is context-driven testing?” and more specific “How do you recognize a context-driven presentation?”. ...

To help the Dutch community evolve to learn, think and do more skilled testing I want to advocate interesting stuff to read to the community. But what should a tester read? Earlier I published a li...

I love to read and I own many books on testing, software, management and other stuff that relates to my work. But what should a tester read? On this blog I recommend several books in my great reso...

Normally, I do not blog about personal, non-testing related stuff. But this blog post is different. If you are not interested in my personal emotions and private life, no problem at all, I understa...

Here are the sketchnotes I made during DEWT3 with the thema “Systems Thinking”. Click the images to view them full size. Experience reports are here. Comments from the original Wordpres...

This is the video of my talk at TestBash 2.0 in Brighton March 2013.

What can testing learn from social science? Why is this important to testers? My conclusion is that testing and the social sciences are very much interconnected and there are many lessons that we ...

Social science: three presentations Social science is about society, human nature and human interaction. It is an umbrella term to refer to sciences like anthropology, economics, education, linguis...

People are predictably irrational You think you are rational, but you are not. People fail to realize the irrationality of their actions and believe they are acting perfectly rational, possibly due...

Testers need to do a lot of thinking. To me testing is an investigation, gathering and providing information about things that are important. I like the definition by Jerry Weinberg: “testing is ga...