Object-oriented text decomposition: A methodology for creating CAI using hypertext

Abstract

This paper presents a methodology for developing computer-assisted instructional material (CAI) intended for use in a transfer learning mode. The development process is characterized by the ordered decomposition of an original knowledge base which will provide the information content of the tutorial. The decomposition process keys on fleshing out key concepts and placing them into a hierarchy of levels of abstraction and detail, where relationships between concepts serve as links between levels. In the process, the knowledge base is parsed into individual text passages, each essentially a mini-tutorial on a single concept-relationship pair. The finished product is a formally structured collection of text passages.

Ausubel's cognitive theory of learning serves as the theoretical foundation for the content of the text passages as well as the general hierarchical relationship between one passage and others. Gowin's concept mapping application of Ausubel's theory provides a basis for a concept-relationship emphasis. Additionally, the formal direction for the development methodology is borrowed from the principles of software engineering, and the software implementation of the tutorial is done via hypertext.