These quarterly reports for June and September 1979 are two in a series concerned with describing a research project to design, test, and evaluate a machine intermediary which teaches and assists users of the DIALOG system. Report No. 5 explains in detail the instructional aspect of the Individualized Instruction for Data Access (IIDA) project and the benefits it is designed to impart to users of the system. Progress in testing the system with students is described as it relates to changes in the instructional program and general observations. The report illuminates the structure of the program, the contents of instructional exercises, and the current status of development and testing of IIDA, and provides a series of computer-generated exhibits. Report No. 6 has a more technical orientation, describing the present state of all of the computer programs that make up the IIDA system as well as their functions and operations. (FM)