Gothic panel paintings formed the subject for the development of the CD-ROM medium, in which image and sound were integrated. Docent, a hypercard-based software program, was integrated in the CD-ROM for interactive learning. (Docent is a metaphor for interactive learning and teaching.) Both Docent and MetaDocent were first developed for the videodisc medium. MetaDocent gave users with the possibility to create individualized image/text files.
The indexing of image, sound, navigation, and especially the possibility to produce an individualized record (through an integrated Notebook application) were unique at the time.
(Both Docent and MetaDocent are registered trademarks belonging to Mihai Nadin.)