Hello there 👋

My name is Zef Hemel. I use writing as a tool to structure my thinking, to reflect, and adapt as a result. I’m transparent by nature, and have found that sharing the things I’m reading and thinking about — generally around the topics of technology, management and leadership — is not only helpful for myself, it can helpful for others as well. And often, in response, people point me to things I wasn’t yet aware of, or challenge my ideas or conclusions. Now, that sounds like win-all around. Welcome to Zef’s Musings.

Latest Musings 🤔

No More Requirements

In a previous company, I had an engineer work on a feature for the better part of three months. The feature was well-specified, all requirements were clear. When the work was done, and the feature delivered, a demo session was organized. As the product manager demoed the feature, describing the scenario in which our customerContinue reading “No More Requirements”

The Great Decision Purge

Sorry for the link bait title. It was either this or “27 ideas on how to make better decisions,” and I’ve developed a spam filter in my brain that filters out titles with numbers in them. Ok, let’s go on topic. A while ago I wrote about well-considered decisions. I argued documenting decisions in aContinue reading “The Great Decision Purge”

Your Essence

In a previous post I wrote about the “No More Feedback” book. I’m not done with this topic yet. In fact, I skipped a concept Carol Sanford focuses on quite a bit in the book: your essence. I realize how hippie this may sound, but as usual: bear with me. So, dear reader, let’s continueContinue reading “Your Essence”

Dude, another site!?

TL;DR: I’m deprecating Zef.me but it’s somewhat stuck on Medium with annoying to migrate links. The 100x Engineer content may move here too in time. I know. I launched The 100x Engineer a while ago, and I’ve had Zef.me (previously under a different domain) for over 15 years. But actually, Zef’s Musings isn’t something newContinue reading “Dude, another site!?”

Is this the right problem?

I sometimes joke that one half of my job is approving things, the other half is asking questions. Of course, asking any question isn’t all that hard, asking the right question is a skill. However, there are a few tricks. There are a couple of questions that prove valuable over and over. Let’s do someContinue reading “Is this the right problem?”

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