Slawomir Siudek. Software development
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  5. Domain models separation

Domain models separation

Domain models

  • Application defines and uses well-defined set of well-known domain models
  • Domain (business) logic operates on domain models
  • Domain models aren’t used directly in any kind of operations with external systems like (de)serialization to files/databases/JSON types/binary types/messages/configuration etc.
  • Proper mappers between external systems and the domain logic are located in proper separated modules/packages (hereafter: ports) related to such external systems so that the domain is still free from being polluted by external types/dependencies.