Dinkhoff, G.G.DinkhoffWu, X.X.Wu2022-03-082022-03-081993https://publica.fraunhofer.de/handle/publica/321103In this paper we present the graphical Interface InGRAPH designed for a fully object-oriented database system. INGRAPH is based on an extended entity- relationship model which provides essential object- oriented modeling capabilities. In order to offer a friendly man-machine interaction, INGRAPH deliberately uses a limited graphical symbolism, supports multi- threaded dialogues and window hierarchies, which provide users with the maximal flexibility for database query, manipulation and design.enextended entity-relationship data modelGUIInGRAPHInORMobject-oriented database system004conference paper