Systems in which control and decision-making authority are concentrated in a central authority or entity[1].
Defined Terms
1. ↑ entity.
"Any singular, identifiable and separate object. The term is used in a number of programming languages/concepts, database management and systems design. In relation to a database, an entity is a single person, place, or thing about which data can be stored. In data modeling (a first step in the creation of a database), an entity is some unit of data that can be classified and have stated relationships to other entities."
