Four major education and training markets for multimedia products are: (1) industrial training; (2) management and professional education; (3) medicine and the health sciences; and (4) formal education, including public, higher and adult education. The industrial training market refers to the development of nonmanagerial, technical, and non-technical skills in industry, and focuses on specific applications. Interactive optical technologies have not yet been widely used for training purposes by U.S. businesses because of the incompatibility between hardware systems and the lack of courseware. Courseware development, however, has grown in the managerial and professional marketplace where problem solving and other thinking skills must be taught. International Business Machines' (IBM) InfoWindow has become the standard for videodisc training. The health sciences provide a further market for videodisc programs, and for IBM programs in particular. IBM provides support to the Healthcare Interactive Videodisc Consortium, a group of medical and nursing schools that are developing interactive videodisc instruction for healthcare training. Macintosh computers and Hypercard programs are also becoming popular in the medical education field. Although Hypercard use has grown in the field of formal education over the last decade, education's traditional reluctance to accept new materials or methodologies has hampered the growth of the public education and higher education marketplaces for optical media. Patterns for the development of courseware include vendor-developed and in-house development in all four marketplaces. (5 references) (DB)