What do tactical patterns of DDD contain?

DDD (Domain-Driven Design) tactical patterns are design templates that help structure and model domain logic within an application. They include:

• Entity — an object with a unique identifier, whose lifecycle is important.
• Value Object — an object without identity, defined by its attributes.
• Aggregate — a group of related objects considered as a single unit for changes.
• Repository — an abstraction for accessing aggregates, hiding storage details.
• Factory — an object responsible for creating complex objects or aggregates.

These patterns help organize code so that it reflects business logic and is easy to maintain.