Database Systems: A Directed Hypergraph Database: A Model for the Local Loop Telephone Plant

Abstract

A database model that is a directed hypergraph is described in the context of an application to the telephone plant. There is particular emphasis on the fidelity of the application model to the “real world,” information hiding by modules, transaction concurrency, names of inventoried objects, and pending. Pending refers to the maintenance of a tree of possible future states of the inventory.