In the case of an anti-corruption layer (ACL) pattern, the bounded context does not directly use the domain model of the other bounded context, but it contains a layer for decoupling its own domain model from the model of the bounded context.

This is useful in conjunction with the conformist pattern to generate a separate model decoupled from the other model.

Example

The drawing below shows that the bounded context shipping uses an ACL at the interface to the bounded context legacy so that both bounded contexts have their own independent domain models.

This ensures that the model in the legacy system does not affect the bounded context shipping. Shipping can implement a clean model in its bounded context.

https://learn.microsoft.com/en-us/azure/architecture/patterns/anti-corruption-layer