With the development of CNC, communication and CIM technology, the connotat
ion and functions of DNC have been greatly enlarged. In order to describe t
he features and development of contemporary DNC, a new concept, integrated
DNC, is presented in this paper. The connotation of integrated DNC and othe
r relative concepts are discussed, Four control architectures of integrated
DNC are proposed, including bi-hierarchies, tri-hierarchies, quadri-hierar
chies and across-shops architectures. A case study of integrated DNC is int
roduced.