Act 2, scene 8: Domain primitives today

Scene 8: Domain primitives today

Beneath the business rules are the domain primitives: the entities, calculations and relationships every customer relies on. In payroll, that means an employee, a pay element, a statutory deduction, and how they combine. They change far less from one customer to the next. Two customers can have different pay policies while sharing the same definition of a pay element. The product exposes these primitives through its APIs, which already cover a large part of the domain.