Case Study of a WIP Limit Implementation: Why, When and How to use WIP Limits

When you are learning about Kanban, one of the first things you hear is “always limit WIP, you should”, or a less Yoda-ish version of it. But when you decide that you will indeed use WIP limits and google “WIP Limits for dummies”, you won’t discover any walkthroughs or easy-to-implement equations to discover what limit … »

Forecasting software project’s completion date through Monte Carlo Simulation

Nowadays we are using a more probabilistic approach to manage our processes than deterministic. That means that we use different statistical methods to predict the future instead of blind estimations. But wait… wasn’t unpredictability one of the main reasons that made us change from Waterfall to Agile? Yes, uncertainty is inherent to software development. For … »

5 Strategies to improve software development workflow

It is difficult to come up with a plan when you find yourself in a dysfunctional environment. Everything is on fire and there is no time available. Tight deadlines, pressure, working overtime, unsatisfied customers, waste, and a whole lot of other chaotic stuff that piles up and makes it difficult to pick the most critical … »

Key points to consider when doing a software rewrite

The third post of Low Internal Software Quality series. As well as a big software refactor, a rewrite is not a simple thing either. After many years, we have gotten experience enough to point what you had better consider when planning and executing a rewrite process. Will the two platforms live together for some time … »

Key points to consider when doing a big software refactoring

The second post of Low Internal Software Quality series. Doing a big software refactor1 is not a simple thing. There are lots of points that you should think about, from planning and prioritizing to team motivation and execution. Understanding these points in a structured and clear way is part of the job. The good news … »

Understanding deps and applications in your Mixfile

Note: Elixir v1.4 has been released and improves on many points touched by this article. From v1.4, Elixir will automatically infer the list of applications based on your dependencies. For more information, read the official announcement. In my journey as a curious Elixir developer, I’ve come across this seemingly simple question a few times: which … »