TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Fritzsch, Jonas
A1  - Bogner, Justus
A1  - Wagner, Stefan
A1  - Zimmermann, Alfred
T1  - Microservices migration in industry: intentions, strategies, and challenges
T2  - 2019 IEEE International Conference on Software Maintenance and Evolution : ICSME 2019, 30 September - 4 October 2019, Cleveland, Ohio
N2  - To remain competitive in a fast changing environment, many companies started to migrate their legacy applications towards a Microservices architecture. Such extensive migration processes require careful planning and consideration of implications and challenges likewise. In this regard, hands-on experiences from industry practice are still rare. To fill this gap in scientific literature, we contribute a qualitative study on intentions, strategies, and challenges in the context of migrations to Microservices. We investigated the migration process of 14 systems across different domains and sizes by conducting 16 in-depth interviews with software professionals from 10 companies. Along with a summary of the most important findings, we present a separate discussion of each case. As primary migration drivers, maintainability and scalability were identified. Due to the high complexity of their legacy systems, most companies preferred a rewrite using current technologies over splitting up existing code bases. This was often caused by the absence of a suitable decomposition approach. As such, finding the right service cut was a major technical challenge, next to building the necessary expertise with new technologies. Organizational challenges were especially related to large, traditional companies that simultaneously established agile processes. Initiating a mindset change and ensuring smooth collaboration between teams were crucial for them. Future research on the evolution of software systems can in particular profit from the individual cases presented.
KW  - microservices
KW  - migration
KW  - interviews
KW  - empirical study
KW  - refactoring
KW  - decomposition
KW  - agile transformation
KW  - industry
Y1  - 2019
U6  - https://doi.org/10.1109/ICSME.2019.00081
DO  - https://doi.org/10.1109/ICSME.2019.00081
SP  - 481
EP  - 490
S1  - 10
PB  - IEEE
ER  -