Industry Best Practices for Microservice Integration

基于微服务的架构是一种新型且有前途的软件架构。微服务是为客户端提供业务功能的服务。微服务通常由不同的团队独立开发，使用不同的技术堆栈来提高（持续）交付速度。在以前的应用程序需要在更改时更换整个系统的情况下，微服务承诺增量交付，从而提高创新速度。实践者认为，这种提高的交付速度使微服务成为构建现代云应用程序的更合适的方法，而不是以前更单一的方法。即使它们是解耦的，微服务也需要相互通信，因为它们提供的业务功能通常涉及到跨所有微服务的工作流。微服务的集成是一个尚未得到足够研究的主题。研究这个主题，我们希望使基于微服务的系统的设计和实现更容易，更可预测。我们建议首先对从业者如何以及为什么集成微服务进行理论构建。我们使用定性调查作为我们的尝试和证明的研究方法，从行业中引出当前的最佳实践。其结果将是微服务集成的初步理论，我们计划将其作为最佳实践手册，以支持我们的研究结果的实际应用。我们计划首先使用参与式行动研究，然后使用多案例研究来评估最初的理论。在参与式行动研究评估中，我们与一个行业合作伙伴一起在他们的一个项目中应用最佳实践手册。行动研究的结果将反馈到手册中。在下面的案例研究评估中，我们将向行业合作伙伴提供手册，供他们自己的项目使用。在本研究的最后，我们将创建一个基于行业最佳实践的微服务集成理论，并使用参与式行动研究和案例研究进行审查。使用两种不同的方法来评估理论所固有的方法三角测量将确保高质量的研究结果，并以手册形式铸造理论将确保其行业相关性。

Microservice-based architectures are a new and promising type of software architecture. A microservice is a service that provides a business function to clients. Microservices are developed independently of each other, often by different teams, using different technology stacks for the purpose of improving (continuous) delivery speed. Where previously applications required full system replacement upon a change, microservices promise incremental delivery and hence increased innovation speed. Practitioners argue this increased delivery speed makes microservices a more suitable approach for building modern cloud applications than the more monolithic approaches from before. Even though they are decoupled, microservices need to communicate with each other, because the business functions they provide are often involved in workflows that go across all microservices. The integration of microservices is a topic that has seen not enough research yet. Studying the topic, we hope to make the design and implementation of microservices-based systems easier and more predictable. We propose to first perform theory building of how and why practitioners integrate microservices. We use the qualitative survey as our tried and proven research method for eliciting current best practices from industry. The result will be an initial theory of microservice integration that we plan to cast as a best practices handbook to support the practical application of our findings. We plan to evaluate the initial theory first by using participatory action research and then by using multiple-case case study research. In the participatory action research evaluation, we apply the best practices handbook together with an industry partner in one of their projects. The learnings from the action research will be fed back into the handbook. In the following case study research evaluation, we will provide the handbook to industry partners for use in their projects on their own. At the end of this study, we will have created a theory of microservices integration rooted in industry best practices and that has been vetted using both participatory action research and case study research. The methodological triangulation inherent in using two different methods for evaluating the theory will ensure a high quality of the research results and the casting of the theory in handbook form will ensure its industry relevance.