Provides an example that illustrates the interrelationship of the factors that influence educational software portability. Nielsen's seven-level approach to human-computer interaction is used as the basis for a model for factors that influence portability, and five phases in the life cycle of a software product being adapted are considered. (10…

Discusses collaborative authoring, computer-supported collaborative work and the reuse of multimedia courseware; describes a consolidated model, Open Systems for the Collaborative Authoring and Reuse (OSCAR) of courseware, that was drawn from other abstract models; and examines hypermedia systems, object-oriented communication models, and the…

Discusses the interrelationships of the concepts of adaptability and portability of educational software. A conceptual framework for adaptable educational software is offered, a seven-stage model of adaptation is presented, and the research approach of the USE project in the Netherlands--which is concerned with the development and use of adaptable…

Describes a project that addressed the problem of courseware reusability by developing a database structure suitable for organizing multimedia learning material in a given content domain. A prototype system that allows browsing a DBLM (Data Base of Learning Material) on earth science is described, and future plans are discussed. (five references)…

This response to a previously published article on the replaceability of media and instructional methods focuses on a study that uses a chemistry multimedia software package to examine cognitive processes in which learners interact with instructional designs and use media and methods to construct understanding. (nine references) (LRW)