28 days ago - req23619

Computer Science Internship: Actionable insights from log differences for software maintenance

Research & development

Computer science & software engineering

In a nutshell


Veldhoven, Netherlands


Research & development


No experience (Student)



Job Category

Computer science & software engineering


Are you a Master student in Computer Science and are you looking for an interesting graduation project? Then this project in our Research department could be interesting for you!

Job Mission

In software engineering practice developers place log statements in the source code of systems to capture the runtime behavior of the systems during its execution. Developers often compare multiple logs. For example, when debugging software regression, developers compare the logs generated from the previous correct software version and the faulty software version to identify the behavioral differences, and subsequently pinpoint the root cause of regression. However, it has been reported by the developers that many irrelevant differences could be found by using textual comparison tools, which makes it difficult to identify the difference that causes the regression. The existing research studies about log differencing have their limitations. For example, statistical hypothesis testing techniques have been applied to help developers identify statistically significant differences between logs. However, statistically significant differences may not be relevant and actionable insights for developers’ maintenance tasks. To help developers understand log differences, the ASML software research team has developed a technique that can learn behavioral models (i.e., state machines) from execution logs and compare logs at model level. Although this technique helps developers understand the behavioral differences between two software versions without comparing the textual differences in logs, inspecting all the differences shown in models can still be time-consuming for developers. We believe that the technique can be further extended to categorize the differences providing developers with actionable insights for their maintenance tasks.

Job Description

In this project, you will be closely working with the ASML software research team to develop an approach that can provide actionable insights of log differences to developers for their tasks. You are expected to investigate existing literature, contribute your own ideas, implement the ideas, show their feasibility, and validate the approach in ASML context.


• You are a final year’s Master student in Computer Science or something related;
• Experience in programming in Java and Xtend, using the Eclipse IDE is a pre.
• Knowledge about Software evolution and maintenance, Process mining, Automata theory and Event-based systems is a nice to have.

This is a Master graduation assignment for 6 to 9 months. The start date is as soon as possible.

Please note that we can only consider students who are enrolled at a school for the entire duration of the internship.

Other information

What ASML offers
Your internship will be in one of the leading Dutch corporations, gaining valuable experience in a highly dynamic environment. You will receive a monthly internship allowance based on your educational level and number of days per week, plus a possible housing or travel allowance. More information on the allowances can be found on our website. In addition you will get expert, practical guidance and the chance to work in and experience a dynamic, innovative team environment.

ASML: Be part of progress
We make machines that make chips – the hearts of the devices that keep us informed, entertained and safe; that improve our quality of life and help to tackle the world’s toughest problems.

We build some of the most amazing machines that you will ever see, and the applications to run them. Never satisfied, we measure our performance in units that begin with pico or nano.

We believe we can always do better. We believe the winning idea can come from anyone. We love what we do – not because it’s easy, but because it’s hard. At ASML we are always pushing technology further.

Students: Getting ready for the real-world
Teamwork is key within ASML. Our R&D team is more than 5,500 people strong and worldwide we form one big team with over 25,000 employees. These colleagues have 123 different nationalities and work at our major sites on three continents.

Dozens of diverse, interdisciplinary teams work in parallel to meet a challenging development schedule. In this inspiring environment, your colleagues may be sitting next door, or they could be thousands of kilometers away in a different country, or even working for a different company.

An internship at ASML is your opportunity to get to know this world and get a feel for that excites you most. Use your education, gain real-life working experience and explore the world of high-tech – all at the same time.

How will you be part of progress?