This is the fifth article in a series about building applications with microservices. The first article introduces the Microservices Architecture pattern and discusses the benefits and drawbacks of using microservices. The second<.htmla> and third articles in the series describe different aspects of communication within a microservices architecture. The fourth article explores the closely related problem of service discovery. In this article, we change gears and look at the distributed data management problems that arise in a microservices architecture.