Reflections on the 6th Resilience Engineering Symposium

I just spent the last week in Lisbon, Portugal at the Resilience Engineering Symposium. Zoran Perkov and I were invited to speak on the topic of software operations and resilience in the financial trading and Internet services worlds, to an audience of practitioners and researchers from all around the globe, in a myriad of industries....
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Some Principles of Human-Centered Computing

From Perspectives On Cognitive Task Analysis: Historical Origins and Modern Communities of Practice (emphasis mine) The Aretha Franklin Principle Do not devalue the human to justify the machine. Do not criticize the machine to rationalize the human. Advocate the human–machine system to amplify both. The Sacagawea Principle Human-centered computational tools need to support active organization of...
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Learning from Failure at Etsy

(This was originally posted on Code As Craft, Etsy’s engineering blog. I’m re-posting it here because it still resonates strongly as I prepare to teach a ‘postmortem facilitator’s course internally at Etsy.) Last week, Owen Thomas wrote a flattering article over at Business Insider on how we handle errors and mistakes at Etsy. I thought...
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Owning Attention (Considerations for Alert Design)

In the past month or two, I’ve spoken on the topic of alert design. There’s a video of my giving the talk (at Monitorama, as well), but I thought I’d try to post on the topic and material as well. The topic of alerts and “alert design” as seen as a deliberate and purposeful thing...
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Prevention versus Governance versus Adaptive Capacities

The other day I posted about the intersections of Systems Safety and web operations and engineering. One of the largest proponents of bringing a systems thinking perspective to safety (specifically ‘software safety’) is Dr. Nancy Leveson, who has been in that field (really a multidisciplinary field) for at least a couple of decades. She’s the...
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