The purpose of the study is to bring in the fourth part of diachronic conversation on instructional design with Robert Gagné and David Merrill to the language of Turkish. In July 1989, Robert Gagné from Florida State University and David Merrill from Utah State University shared and discussed their views on instructional design at Utah State University. In the fourth session,they look towards the future of instructional design and share their ideas. They exchange ideas on how they see expert systems and they shared their ideas about the roles of both instructional design and technology in the schools. Moreover, they discussed how expert systems may affect the design of instruction. Here doctor Gagné and doctor Merrill exchange ideas on how they see expert systems will be used to further the effectiveness and efficiency of the instructional design process. Doctor Gagné shares his ideas about the roles of both instructional design and technology in the schools.