Making Productivity Tangible

It’s no small wonder customers, managers of software development, and even developers themselves, I guess, are so focused on code functionality and code efficiency (e.g. performance, scalability, usability, security). Both represent what’s tangible to them. Both are a software’s runtime qualities. They are what’s valuable to users. Functionality and efficiency are what customers are paying […]

weiterlesen

Magically Predictable Software Production

Here’s a story, or a thought experiment, of you like: Imagine you as a Product Owner (PO) find a black box which magically transforms written requirements into high quality executable code. You just need to hook-up the black box to a GitHub repository. Once that’s done, the rest is easy: you feed it requirements as […]

weiterlesen

Two Problem Solving Approaches

Solving a problem can be hard at times. What I’ve found helpful then is to distinguish between two different approaches to tackle the problem. Without distinguishing them I’m prone to use an unsuitable approach and make things harder than they actually are. Here’s a sample problem: Write a bash/console program to convert roman numbers entered […]

weiterlesen

TDD – How It Can Be Done Right

TDD has gone wrong. It was well intentioned and is a great technique, but many developers who are trying it are not experiencing the promised benefits. How come? This question was asked and answered by Ian Cooper in a DevTernity talk in 2017. Watch the video here, if you like. It’s worth pretty much all […]

weiterlesen

Dependencies Flow Down Abstractions

Dependencies are the bane of software development. They make code rigid, difficult to understand, and hard to test. If we want to do better we need to deal better with dependencies. Of course quite some efforts have been made in this direction. The SOLID principles are trying to give good advice: Use the Dependency Inversion […]

weiterlesen

When to Turn to Microservices for Help

Microservice architectures seem to be the latest craze. When in doubt, bet your software architecture on microservices. They sure will deliver everything but the kitchen sink. Or maybe think twice? Because microservices like all technologies and paradigms come with a price. And this price is not cheap – especially if you haven’t dealt with distributed […]

weiterlesen

Do You Want to Stay Productive?

What’s the question to which clean code development is the answer? I think it is: Do you want to stay productive? I mean, indefinitely. I mean, being productive in a sustainable way. That means, clean code development is not the answer to questions regarding runtime efficiency like scalability or performance or security or usability. Look […]

weiterlesen

Structure Code for Rewriting

From a certain point on it becomes very tedious, frustrating, and expensive to change code in order to implement some new requirement. For a while clean coding and refactoring help – but in the end it’s undeniable: the existing code is more of a burden, a liability, than an asset. This is not satisfying, but […]

weiterlesen

Steering Software Development with Priorities Instead of Deadlines

There is an unquestioned practice in software development which to me seems to be quite harmful. It’s the practice of letting developers work towards a deadline. In this article I’m not much concerned with how the question „When will it be done?“ is answered. I’m just assuming that there is a deadline attached to a […]

weiterlesen

Forecast vs Estimation – A clarification

Is there a difference between estimating and forecasting? I think there is. After my previous article on forecasting there was a discussion about whether I used these terms properly. I was referred to Wikipedia for „forecasting“ with the comment „Every forecast is an estimate“: Forecasting is the process of making predictions of the future based […]

weiterlesen