TY - CHAP U1 - Konferenzveröffentlichung A1 - Bogner, Justus A1 - Fritzsch, Jonas A1 - Wagner, Stefan A1 - Zimmermann, Alfred T1 - Microservices in industry: insights into technologies, characteristics, and software quality T2 - 2019 IEEE International Conference on Software Architecture companion : ICSA-C 2019 : proceedings : 25-29 March 2019, Hamburg, Germany N2 - Microservices are a topic driven mainly by practitioners and academia is only starting to investigate them. Hence, there is no clear picture of the usage of Microservices in practice. In this paper, we contribute a qualitative study with insights into industry adoption and implementation of Microservices. Contrary to existing quantitative studies, we conducted interviews to gain a more in-depth understanding of the current state of practice. During 17 interviews with software professionals from 10 companies, we analyzed 14 service-based systems. The interviews focused on applied technologies, Microservices characteristics, and the perceived influence on software quality. We found that companies generally rely on well established technologies for service implementation, communication, and deployment. Most systems, however, did not exhibit a high degree of technological diversity as commonly expected with Microservices. Decentralization and product character were different for systems built for external customers. Applied DevOps practices and automation were still on a mediocre level and only very few companies strictly followed the you build it, you run it principle. The impact of Microservices on software quality was mainly rated as positive. While maintainability received the most positive mentions, some major issues were associated with security. We present a description of each case and summarize the most important findings of companies across different domains and sizes. Researchers may build upon our findings and take them into account when designing industry-focused methods. KW - Microservices KW - industry KW - interviews KW - service technology KW - software quality Y1 - 2019 SN - 978-1-72811-876-5 SB - 978-1-72811-876-5 U6 - https://doi.org/10.1109/ICSA-C.2019.00041 DO - https://doi.org/10.1109/ICSA-C.2019.00041 SP - 187 EP - 195 S1 - 9 PB - IEEE CY - Piscataway, NJ ER -