Which Core Architecture Principles Does Microservices Oriented To

Core Architectural Principles

The core architectural principles behind microservices-oriented architectures are simple, yet effective. They are designed to aid in scalability and maintainability of the software. These principles mainly focus on decomposing the application into services, keeping services independent, and making the communication between services explicit.

Which Core Architecture Principles Does Microservices Oriented To?

The core architecture principles that microservices oriented towards can be broken down into three main components: decomposition, independence, and explicit boundaries. Additionally, these principles are sometimes referred to as the ‘three pillars’ by those familiar with microservices, as they each play a crucial role in the success of such architectures.


Decomposition is the process of breaking down a complex system into more manageable pieces. Within microservices, it refers to breaking down the application into discrete services. This helps to keep the code for each service manageable and makes it easier for different teams to work on separate pieces of the application, leading to faster development cycles. It also allows for different services to be updated and deployed independently of each other, which can be important when it comes to scalability and maintainability.


Having independent services means that each service should be able to operate on its own and should not rely too heavily on any other services within the application. This allows for services to be scaled or removed independently of other services, as well as reducing the blast radius in the case of errors. Additionally, it means that services can be written in different languages or frameworks, meaning teams can use different technologies for different services. This can help to create more agile and flexible applications.

Explicit Boundaries

Explicit boundaries refer to making the communications between services explicit. This means that the services should not directly invoke or call each other, but rather communicate via an event-based system such as a message queue. This has the advantage of allowing for asynchronous communication, as well as allowing for services to be more loosely coupled. Additionally, it makes it easier to expand the architecture, as more services can be added without the need to change existing services.

Testing and Monitoring

In order for microservice-oriented architectures to be successful, it is important to have adequate testing and monitoring in place. This is especially important when different services are owned and operated by different teams, as it allows for any potential issues or errors to be identified quickly and resolved. Additionally, monitoring helps teams to understand how their services are performing, which is important when it comes to scalability.


Deployment is another key area when it comes to microservices. It is important to ensure that deployment is automated and orchestrated in an efficient manner, as this helps to ensure that services are kept up-to-date and any errors are quickly identified and resolved. Additionally, the deployment process should be configured in a way that allows for services to easily be added, removed, and updated without any downtime. This is important for scalability and maintainability.


Finally, it is important to consider how services are integrated together. This is especially important when there are multiple services spread across multiple physical locations or different cloud providers. Ensuring that the communication between different services is robust and secure is an essential part of maintaining a microservices-oriented architecture. This can be achieved through the explicit boundaries discussed earlier, but also through the use of appropriate network security to protect services.


In conclusion, the core architectural principles underpinning microservice-oriented architectures are simple but effective. Decomposition, independence, and explicit boundaries are the three main principles, and testing and monitoring, deployment, and integration should all be taken into consideration in order to ensure a successful architecture. By following these principles and understanding the different components, organizations can benefit from more scalable and maintainable software.

Anita Johnson is an award-winning author and editor with over 15 years of experience in the fields of architecture, design, and urbanism. She has contributed articles and reviews to a variety of print and online publications on topics related to culture, art, architecture, and design from the late 19th century to the present day. Johnson's deep interest in these topics has informed both her writing and curatorial practice as she seeks to connect readers to the built environment around them.

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