Define headless CMS in the context of Sitecore XM Cloud.

A headless CMS, particularly in the context of Sitecore XM Cloud, refers to an architecture where the back-end content management system is decoupled from the front-end presentation layer. This means that the content can be created, managed, and stored in the back end independently of how it will be displayed to users on the front end.

The separation allows developers to deliver content across various platforms and devices, such as websites, mobile apps, and IoT devices, without being tied to a specific presentation framework or technology. In Sitecore XM Cloud, this approach enhances flexibility and optimizes content delivery, enabling teams to tailor the user experience across multiple channels while maintaining a single source of truth for content management.

This architecture fosters the use of APIs to fetch content dynamically, allowing for innovative front-end development where the presentation can change without altering the underlying content infrastructure. It aligns well with modern web practices, where headless CMS solutions are preferred for their agility and modularity in a multi-channel environment.