The Software Quality Days (SWQD) conference and tools fair started in 2009 and has grown to be the biggest conferences on software quality in Europe with a strong community. The program of the SWQD conference is designed to encompass a stimulating mixture of practical presentations and new research topics in scientific presentations as well as tutorials and an exhibition area for tool vendors and other organizations in the area of software quality. This professional symposium and conference offer a range of comprehensive and valuable opportunities for advanced professional training, new ideas, and networking with a series of keynote speeches, professional lectures, exhibits, and tutorials. The SWQD conference is suitable for anyone with an interest in software quality, such as software process and quality managers, test managers, software testers, product managers, agile masters, project managers, software architects, software designers, requirements engineers, user interface designers, software developers, IT managers, release managers, development managers, application managers, and similar roles. The guiding conference topic of the SWQD 2019 was “The Complexity and Challenges of Software Engineering and Software Quality in the Cloud,” as changed product, process, and service requirements, eg, distributed engineering projects, mobile applications, involvement of heterogeneous disciplines and stakeholders, extended application areas, and new technologies, include new challenges and might require new and adapted methods and tools to support quality assurance activities early.