A monolithic DXP and a composable DXP are two different approaches to building digital experience platforms, with a critical difference in their architecture. A monolithic DXP is a tightly-coupled single system that requires specialized knowledge to operate. Its features and functionalities are tightly built into a single entity, and customization or changes to the monolithic architecture and platform can be complex to implement. A composable solution, on the other hand, is built on a modular architecture that allows adding new individual components. This modular approach speeds up digital delivery in a highly flexible, scalable way.