Microservices
Microservices, also known as microservice architecture, is a contemporary approach to designing and building digital applications that emphasizes independent operation of individual components. Unlike traditional monolithic architecture, where all components are interdependent and share a single codebase, microservices allow each component, or microservice, to function autonomously. This design fosters dynamic scalability, enabling developers to add or remove components without significant disruption to the overall system. If one microservice fails, the impact on the other components is minimized, enhancing system resilience.
Microservices also streamline the software development process, allowing engineering teams to work concurrently on different components, which can accelerate updates and enhance efficiency. Users benefit from this architecture as well, as they can add or update individual components without needing to overhaul the entire system, making changes quicker and more cost-effective. Looking ahead, advancements in artificial intelligence (AI) are anticipated to further enhance microservices by improving design, planning, and automation, thereby enabling continuous optimization in both development and service execution. This evolving architecture represents a shift in how applications are built and maintained, catering to the increasing demands of modern software usage.
On this Page
Microservices
Microservices, or microservice architecture, is a process for designing and building digital applications. This process allows each component of an application to work independently of others. It may provide significant benefits to both engineers and users, and has, in many cases, replaced traditional monolithic forms of application architecture.


Overview
People use applications for countless purposes each day, as demonstrated by the rising popularity of mobile applications. For engineers and scientists, the ongoing challenge is to design new and better applications to meet society’s needs.
The process of designing and creating applications is known as application architecture. Like the architecture used to build a bridge or building, this process creates a sound blueprint and set of best practices to help the creation go as smoothly as possible and yield the best product. Some important components of application architecture include choosing the best programming language (such as JavaScript, Swift, Ruby, or SQL), and selecting the structure of the coding.
Traditionally, in software engineering, applications had a so-called monolithic coding architecture, meaning that all of the components of the application drew from a single unit of code. That means that all parts of the resulting application would share the same digital resources and memory space. Many computer scientists have begun finding alternatives to monolithic architecture. These alternatives could bind the components more loosely and allow them more freedom.
One major alternative is microservice architecture. Microservices provides an opposing approach to monoliths because every component in microservices applications is allowed to operate independently. Even the smallest component is given a wide range of freedom to work on its own and, in that way, to become a separate and distinct, yet related and cooperative, microservice.
Many engineers have embraced the microservices approach for a variety of reasons. One reason is for dynamic scalability, since the loose coupling of the components allows components to be added or subtracted from the system with minimal interference to the other components. Another benefit is that, if one component were to fail, it would be unlikely to have a direct impact on the other components. Similarly, in monolithic architecture, if the core coding infrastructure proves faulty, it will likely bring down the entire system. In microservices architecture, the components will likely be able to continue functioning even in such an event.
On a business level, microservice architecture holds a very important benefit in that it allows engineers to create new or updated software more quickly and efficiently. Engineers may work on a wide range of different microservices that can then be added into a system. This allows better use of time and resources, as engineering teams can focus on specific tasks and may work concurrently with other teams, rather than all working on the same system at the same time.
Microservices may also prove more efficient for the user. In traditional monolithic architecture, a user might have to replace or update an entire system to gain one or a few new components. In microservices, the user would have a much greater likelihood of being able to add new or updated components individually, making the process much quicker, easier, and less expensive. It also allows updates and add-ons to be integrated without disrupting the entire system.
By the middle of the 2020s, artificial intelligence (AI) stood to have a significant impact on the development of microservices architecture. Potential areas where AI was projected to provide significant improvements included planning for requirements, metrics, and optimal structure design of Application Programming Interfaces (API). Using specified protocols, APIs allow different software to interface with each other. For example, one software may provide data sets for the other to integrate into an application, such as a traffic app. The API acts as the go-between.
AI-generated services include predictive analysis using historical data sets to identify likely shortages or surpluses of products and services. AI promised not only greater scalability for cloud-based applications but also to do so in an automated manner. In sum, AI was set to provide non-stop optimization for microservices, not simply in terms of their development, but in the execution of the services they provide.
Bibliography
Charankar, Nilesh. “AI-Driven API and Microservice Architecture Design for Cloud.” DZone, 18 Mar. 2024, dzone.com/articles/ai-driven-api-and-microservice-architecture-design. Accessed 26 May 2024.
“Demystifying AI Integration in Microservices Architecture.” Medium, 19 Oct. 2023, medium.com/@asierr/demystifying-ai-integration-in-microservices-architecture-8330467281ea. Accessed 26 May 2024.
Fowler, Martin. “Microservice Trade-Offs.” MartinFowler.com, 1 July 2015, martinfowler.com/articles/microservice-trade-offs.html. Accessed 17 Mar. 2021.
Lewis, James. “Microservices.” MartinFowler.com, 25 Mar. 2014, martinfowler.com/articles/microservices.html. Accessed 17 Mar. 2021.
McCormick, Jeff. “10 Best Practices for Managing Data in Microservices.” Data Management, 21 May 2024, www.techtarget.com/searchDataManagement/tip/Best-practices-for-managing-data-in-microservices. Accessed 26 May 2024.
“Microservices.” IBM Cloud Education, 23 Oct. 2019, www.ibm.com/cloud/learn/microservices. Accessed 17 Mar. 2021.
Richardson, Chris. “What are Microservices?” Microservices.io, 2020, microservices.io. Accessed 17 Mar. 2021.
Singh, Jetinder. “The What, Why, and How of a Microservices Architecture.” Medium, 7 June 2018, medium.com/hashmapinc/the-what-why-and-how-of-a-microservices-architecture-4179579423a9. Accessed 17 Mar. 2021.
“What are Microservices?”Red Hat, 2021, www.redhat.com/en/topics/microservices/what-are-microservices. Accessed 17 Mar. 2021.
“What is an Application Architecture?” Red Hat, 2021, www.redhat.com/en/topics/cloud-native-apps/what-is-an-application-architecture. Accessed 17 Mar. 2021.
“What is Microservices?” Smart Bear Software, 2021, smartbear.com/solutions/microservices. Accessed 17 Mar. 2021.