Dieses Notebook ist ein einfach gehaltenes Mini-Tutorial zur Vorstellung grundlegender Funktionen von Jupyter, Python, Pandas und matplotlib, um ein Gefühl für die Analyse von Softwaredaten mit diesen Bibliotheken zu bekommen. Daher ist das gewählte Beispiel so gewählt, dass wir typische Aufgaben während einer Datenanalyse bearbeiten…
In this short blog post, I want to show you an idea where you take some very detailed datasets from a software project and transform it into a representation where management can reason about…
Knowing all about the software system we are developing is valuable, but too often a rare situation we are facing today. In times of software development experts shortages and stressful software projects, high turnover in teams leads quickly to lost knowledge about the source code…
In this blog post, I show how we can partly automate the process of identifying groups of similar test cases as well as how we can visualize those groups. The aim is to find test cases that test the same production code but shouldn’t do it…
In this data analysis … we want to spot test cases that are structurally very similar and thus can be seen as duplicate. We’ll calculate the similarity between tests based on their invocations of production code…
Introduction This blog is a three-part series. See part 2 for calculation of test similarity and part 3 (upcoming) for visualization. In an upcoming analysis, we want to calculate the structural similarity between test cases. For this, we need the
Today, I presented my talk “Identifying problems in software development with data analysis” at JavaLand. Here you’ll find the slides, the demos, additional information and my answers to the questions asked online. Talk You can find the slides to my
I’ve started digging into data analysis in software development back in 2014. During that time, I was working on my master thesis…
The nice thing about reproducible data analysis (like I’m trying to do it here on my blog) is, well, that you can quickly reproduce or even replicated an analysis.
So, in this blog post/notebook, I transfer the analysis of “Developers’ Habits (IntelliJ Edition)” to another project: The famous open-source operating system Linux…
I’m happy to announce that as of today, I’m going part-time to have 1 – 2 days per week for consulting as Software Development Analyst. This is a huge step for me, being in the middle of life. But the time has come for a new kind of software analysis that can help developers out of their miseries…