Mercer leverages proprietary data, landmark global surveys, and advanced tools to design cost-efficient and relevant global employee benefits. It allows us to: Review worldwide benefits plans. Benchmark local market data. Optimize your benefits spend. Leverage global buying power.
Domain Classes and Objects. Objects that represent domain entities are called entities or domain objects. The classes they instantiate are called domain classes. Executing a use case involves creating, destroying, querying, and updating domain objects.
A subclass seems to be/have more specific code of its superclass. An abstract class is something more generic, it can have implementations for its subclasses. An interface is used/implemented in abstract classes and subclasses when those need to play a role.