5 Whys considered harmful
Adverse events happen – a website breaks down, a project doesn’t get delivered on time – and a proposed technique to find ‘the root cause’ is to ask the “5 Whys”. Attributed to Sakichi Toyoda in the...
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Setting up drone.io CI
Drone.io for go I was recently asked to set up a CI server for one of our go projects and decided to try out drone.io 0.8. From my point of view, the two most attractive features of drone.io are that:...
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Padding Oracle Attack or the Virtues of a Glomar response
While working on the excellent CryptoPals challenges, I came across the Padding Oracle Attack. The particular version of the attack I was working through, was on CBC mode Decryption when used with AES...
View ArticleSentiment Analysis of News Articles
What is sentiment analysis? Sentiment analysis, in a nutshell, is used to predict whether a text is negative, neutral, or positive about certain topic without having to read the full text. With the...
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Improving Life in Smaller, Heterogeneous Projects
A little while ago we were asked if we could do a talk on ‘developer experience’ at QCon. I volunteered. We were having lots of fun at the time building a CI/CD system out of Jenkins and Kubernetes,...
View ArticleFast Elixir Porter2 Stemmer
Motivation: understand the Porter2 stemming algorithm and learn some Elixir On a recent project, my mission was to refine and substantially extend a prototype document classification system originally...
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Does Agile Suck in some Cynefin domains?
Here’s an article from Bertil Muth on freeCodeCamp on why Agile isn’t working at your company. This contains a lot of great, level-headed advice about how to excel at Agile—by which Bertil seems to...
View ArticleRabbitMQ Summit 2019
As Oliver Wyman were platinum sponsors of this years’ RabbitMQ Summit, a group of us were in attendance to contribute and hear the latest news from today’s RabbitMQ users. Our own Alex Thomas gave a...
View ArticleCassowary / Kiwi-Solver Elixir Port
A large variety of 2d diagrams and UI layouts can be described declaratively using x,y-coordinates and spatial relations. These spatial relations, or ‘constraints’, can be expressed as systems of...
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Constraint-based layout for Scenic—a proof of concept
Scenic is an Elixir UI framework intended for fixed-screen devices. In Scenic, UIs are constructed and updated by modifying a scene graph, i.e. a tree of graphical elements such as shapes, buttons and...
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