What is a composable architecture?

Highlights

You'll learn everything you need to know about composable architecture and its benefits for the modern business enterprise.

• Modularity: Assemble independent and reusable components to create digital experiences
• Flexibility and scalability: Supports quick integration of new technologies and scaling to new markets and customer segments
• Benefits: Faster development, seamless scalability and reduced operational costs

By leveraging reusable components, composable architecture simplifies deployments, allows component swapping or updating and can be used for cloud-based solutions.

Today’s consumers expect to interact with your business on any channel they choose, whenever they choose. To stay competitive, you need the speed and agility to deliver seamless customer experiences across those channels.

The need to quickly deliver new experiences and adapt to market changes has led more businesses toward a digital experience platform (DXP) with a composable architecture. Gartner predicted that by this year, organizations that had taken a composable approach would “outpace the competition by 80% in the speed of new feature implementation.” 

Let's explore all the noises around composability, its importance and the benefits for businesses.

What is a composable architecture?

Composable architecture is an approach to building software systems with flexible, reusable components. These components are designed to execute specific tasks with minimal side effects, enhancing a system's overall efficiency and adaptability.

The term "composable" refers to the ability to combine and recombine components as needed. This flexibility empowers businesses to adapt quickly to customer needs and market changes. This is why “composability” is essential to digital transformation strategies.

In a traditional website or application, the front-end code (what the user sees) is tightly coupled with the back-end code (the database and server-side logic). This creates development and deployment challenges, as even small changes to the front end can require developers to make significant changes to the back end.

A composable architecture breaks down your entire tech stack into reusable blocks that you can assemble and reassemble. A composable platform, such as a DXP, typically uses a headless CMS. This type of CMS provides an application programming interface (API) that the front-end code can call to fetch data. 

Key terms and concepts related to composability

Here are some applicable terms to know related to composable architecture.

• Composable enterprise: An organization that leverages cloud services and reusable components to achieve agility and resilience. It can quickly rearrange its technological resources and operations to meet changing business needs.
• Cloud services: On-demand services available over the internet from a cloud computing provider's servers rather than a company's on-premises servers.
• Reusable components: Independent components used across different systems or applications. These components are software-defined, meaning they are programmable and can be easily controlled and managed.
• Software-defined: The use of software to control hardware functions traditionally performed by physical hardware such as networking, storage or data center infrastructure.
• Traditional IT infrastructure: Rigid, pre-configured components often physically located in one place and complex to adapt or scale.
• Virtual machines: Software emulations of physical computers. They operate based on computer architectures and provide the functionality of a physical computer.
• Independent components: These components can function independently, reducing the risk of side effects when one component fails or changes.
• Side effects: Unintended consequences or disruptions caused by changes to or failures in a system’s components.
• Composable technology: Technology that’s easily manipulated and reassembled for different purposes.

The benefits of composable architecture

Of its many benefits, perhaps the most important is that it enables a more modular and scalable approach to website development.

• Agility and flexibility: You can develop each separate module and put them together to create a complete website or app. This modular approach makes scaling a website or application much easier since you can add new functionality without re-architecting the entire site.
• Resilience: It is more resilient than monolithic architecture. This is because you can swap out or update individual components without affecting the rest of the system.
• Cost-effective: Compared to monolithic architecture, it requires less development time and effort to create and maintain.

Composable architecture vs. monolithic

In a composable architecture, applications are built as a set of small, independent services that can be combined to form a complete app. This is also known as microservices. This approach contrasts with the more traditional monolithic style of development, in which an app is built as a single, self-contained unit. 

Composable architectures are more agile and flexible. They are also easier to scale, given that they are cloud-native. They help prevent downtime, as failures in one service are isolated from the rest of the app. 

Headless CMSes are well suited to composable architectures. Their decoupled front end and back end allow content to be reused across multiple channels and devices without rebuilding the entire app. As a result, headless CMSes give developers greater control over how they present content and make it easier to create seamless user experiences across channels.

A broader view of composable architecture

Businesses can leverage composability for more than website development. They can create independent, bespoke cloud-based solutions and services designed with reusable components. This contrasts with taking a one-size-fits-all approach. 

With composable technology, physical locations are not a constraint because businesses can create and manage their IT infrastructure remotely. It can also reduce side effects. One of the challenges of traditional IT infrastructure is the side effects that are hard to predict and mitigate. In contrast, composable architecture minimizes the side effects of changing specific IT components. 

Composable empowers businesses to reduce the work, money and time spent on optimization and maintenance. For example, one company switched out their existing firewalls in just a few hours, a task that would have taken weeks to implement. Composability also allows you to add or remove services as your needs change and quickly adapt to market demands.

For instance, in the travel industry, one company used composable architecture to leverage cloud services to analyze and store multiple data points. This allowed it to offer personalized promotions to its customers. Read more on “Why travel brands need composable DXPs.”

Adapting to dynamic business needs through composable architecture

Composable architecture is designed to adapt quickly and efficiently to dynamic business needs. It does this by breaking down traditional IT infrastructure into independent, software-defined components that can be rearranged and reused. Businesses gain more agility and resilience so they can respond swiftly to market, technology and strategy shifts.

For example, a composable enterprise could quickly scale up its cloud services to handle a sudden influx of online traffic. Likewise, it could leverage virtual machines to test new software without disrupting its main operations.

Composable vs. headless architecture

Headless architecture is a step toward composable architecture, where the presentation layer is separated from the back-end system. This is useful when the enterprise needs to support multiple front-end channels. In comparison, a modular architecture offers more flexibility, allowing you to customize the back end with reusable components in the form of modular blocks.

• Flexibility: Composability allows enterprises to quickly build modular digital experiences and compose them into an overall enterprise ecosystem. In contrast, headless architecture is often limited to the front-end web experience. It’s less accommodating when deploying varied business cases across the organization.
• Integration: Composable integrates multiple systems seamlessly; headless focuses on a standalone back-end with APIs for flexible front-end connections.
• Approach to scalability: Composable technology leverages reusable components that can scale across various systems. Headless architecture is less scalable if the back-end system is a server-heavy implementation that relies on virtual machines. The headless approach also introduces side effects because it relies on more syncing between systems.
• Use cases: The modular approach of composable systems suits complex, enterprise-grade ecosystems, while headless architecture is ideal for businesses that require fast, customizable digital experiences.

Composable architecture examples

One example is the use of containers in modern software development. Containers separate system parts, making it simpler to deploy and run them on various infrastructures.

Composable enterprise is another example. In this modular approach, businesses can create dynamic solutions using reusable components and share these solutions across teams. With cloud services and software-defined technologies, they can break down traditional silos, improve agility and gain a competitive edge.

Case studies

• Media & Entertainment – LADBible.com, a media company, cuts editorial time in half and easily scales. Read the complete case study.

• Retail – Bol.com, a large e-commerce platform in the Netherlands and Belgium, increased its website click-through rates by 40% after implementing Contentstack. Read the complete case study. 

• Technology – Elastic moves from WordPress and speeds up the development process by 500%. For more on this example, read the complete case study.

• Travel – Icelandair.com decreased the time it took to push out promotions by 90%. And its content team managed 12 languages for 16 locations without leaving the platform. For more on this example, read the complete case study.

How to get started with a composable architecture

To improve customer experience, the logical first step is to implement a composable digital experience platform with a headless CMS. A headless CMS provides the structure and content for your website or application but doesn't dictate how it should look. This allows you to build an adaptable and customizable architecture as your needs change. 

Once you have chosen a headless CMS, you can add different components to your website or application. These can be anything from simple text and images to complex interactive elements. The key is to start with the basic building blocks and then add on from there. 

Adding more components allows you to create a unique and custom composable architecture that meets your needs. To install composable architecture, you will need to follow these steps:

1. Understand the ecosystem – audit the existing architecture and its capabilities
2. Assess the need for composability – scope out the requirements of upgrading to composable 
3. Architect the requirements – based on business requirements, design the architecture that is required to achieve measurable goals for the business
4. Build the system - build, test, measure results and continue to evaluate and grow.

The future of composable architecture

Composable architecture allows you to change and adapt our applications as your business needs change.

You can add or remove components without rebuilding the entire application from scratch. This allows you to evolve without necessarily abandoning your existing system, making it much easier to keep your applications up-to-date and responsive to changing customer needs and technology disruptions

Composable architecture offers much flexibility and control over how you build your applications. This makes it an essential tool for any business that wants to stay ahead.

FAQ section

What is meant by composable architecture?

It is a design approach that enables the creation of flexible, scalable systems by assembling modular, reusable components that are independent and function as a standalone unit while integrating with other modules via APIs.

What is the difference between modular and composable architecture?

Modular architecture focuses on creating self-contained components that work independently but lack dynamic integration. Composable architecture emphasizes the dynamic assembly of reusable components.

What is the meaning of composable?

It refers to the ability to combine independent, modular components to create a larger system.

What is the difference between composable architecture and microservices?

Composable architecture centers on assembling modular components, which may include microservices, to create flexible, scalable systems. Microservices are an architectural style where you build applications as a collection of small, independent services, each performing a specific function and communicating via APIs.

Learn more

Harness the power of composable architecture to enhance your digital experiences and stay ahead of the competition. As Gartner's prediction suggests, organizations that embrace this composable approach will outpace competitors by 80% in the speed of implementing new features.

A composable architecture allows you to adapt quickly to market changes and customer needs. It allows you to build software systems with flexible, reusable components, making development faster, easier and more cost-effective. It simplifies deployments, making them more efficient.

Contentstack's composable DXP offers these benefits and transforms your business, making it more agile, scalable and future-proof. Talk to us today to get started.