Name: Craft Meetup by Lufthansa Systems Hungária
Start: 2025-01-29T18:00:00+01:00
End: 2025-01-29T21:00:00+01:00
Location: Create26

🚀**Join our FREE Craft software meetup** in partnership with Lufthansa Systems Hungária! Craft Conference is back on May 29-30 2025, and before the main event, you can attend a free software meetup – connect with like-minded professionals, exchange ideas, and get a taste of the engaging community that defines Craft!

In the first talk, Gábor Pécsy, Chief Architecture Owner at Lufthansa Systems Hungária, will discuss scaling software for airline operations. Then, Daniel Moka, Software Craftsman at Moka IT, will explain Mutation Testing and demonstrate how to use it through a live coding session.

**Giveaway!**
Five fortunate attendees will be selected on-site to receive an autographed copy of Gergely Orosz’s “The Software Engineer’s Guidebook”, courtesy of Lufthansa Systems Hungária.

**📅Date & venue:**

* 29 January 2025, Wednesday, from 6 pm
* Create26, [Budapest, Király u. 26, 1061](https://www.google.com/maps/dir//Budapest,+Kir%C3%A1ly+u.+26,+1061/@47.4995497,18.9763479,12z/data=!4m8!4m7!1m0!1m5!1m1!1s0x4741dd81b23e8cdd:0x5d54d647d2f3dee2!2m2!1d19.0587835!2d47.4995463?entry=ttu)

To participate in the meetup you need to complete a short Google form!
**🎟️ [Register now](https://docs.google.com/forms/d/e/1FAIpQLSdNprA9IHQaLqmx62uOjJfdpzDbc3FRnJYvxqVDXSfu91uWFw/viewform?usp=sf_link) for free to reserve your spot!🌐**
Please note that the event's official language is English!

**Schedule**
5:30 - 6:00 Registration
6:00 - 6:45 First talk by Gábor Pécsy
6:45 - 7:30 Second talk by Daniel Moka
7:30 - 8:30 Networking

**DDD for Skies: Scaling Software for Airline Operations**
**by Gábor Pécsy (Chief Architecture Owner, Lufthansa Systems Hungária)**
In his famous blue book, Eric Evans discusses how you can create and refine your domain model as a bounded context in detail. But how do you break up a system into bounded contexts? How do you tackle really large systems? The NetLine product family of Lufthansa Systems is a collection of over a dozen, originally independently developed, products that cover the vast domain of airline planning and ground operations. In order to transform to a coherent product family we need tear down data siloes and create alignment between NetLine components. In this session we will discuss how we began to untangle 30+ years of software legacy.

**Mutation Testing in Action**
**by Daniel Moka (Software Craftsman, Moka IT )**
Code coverage is not a quality metric. You can have 100% code coverage without any test assertions. Code coverage can help to detect untested areas of the code, but it doesn't tell anything about the tested areas. How can we measure the quality of our tests then?

The answer is: Mutation Testing.

In this session, I will explain what Mutation Testing is and demonstrate how to use it through a live coding session. I will also present why Test-Driven Development (TDD) is the most optimal approach for writing code with the most reliable test suite.

Don’t write tests to increase code coverage. Write tests to gain confidence.

**Join us, and discover the opportunities of crafting better software through innovative techniques, insightful strategies, and hands-on experiences.**

**Sponsors and partners**

* [Create26](https://create26.hu/?gclid=CjwKCAiA8YyuBhBSEiwA5R3-E8RIa7rv6_MvMvkpL5l4_nzlBkk3XbYmN4XOF_AZ7WTu0yHPZhQ4-RoCB6UQAvD_BwE): A coworking space in the heart of Budapest with a thriving community and extraordinary benefits.
* [Lufthansa Systems Hungária](https://www.lhsystems.hu/): Creating smart solutions to help airlines unlock their full potential. [LinkedIn](https://www.linkedin.com/company/lufthansa-systems-hung%C3%A1ria/)

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