Microservices: Migration of a Mission Critical System
This addresses scalability challenges for large financial institutions, but it is incremental as it applies an existing microservices paradigm to a specific system.
The paper tackles the problem of improving scalability in software systems by migrating a monolithic architecture to microservices, demonstrating through a real-world case study of Danske Bank's FX Core system that this re-implementation positively affects scalability.
The microservices paradigm aims at changing the way in which software is perceived, conceived and designed. One of the foundational characteristics of this new promising paradigm, compared for instance to monolithic architectures, is scalability. In this paper, we present a real world case study in order to demonstrate how scalability is positively affected by re-implementing a monolithic architecture into microservices. The case study is based on the FX Core system, a mission critical system of Danske Bank, the largest bank in Denmark and one of the leading financial institutions in Northern Europe.