Novel and innovative modes of interacting with website information, which necessitate methods and tools for their evaluation have arisen. However, it is essential to develop such methods from contexts of use at a macro (i.e. cultural) and micro (individual use contexts) level. Activity theory has been used extensively in systems evaluation as it…

This synthesis of the research on direct manipulation interfaces explores the nature of directness in computer interfaces and demonstrates that the concept of directness is complex, including two gulfs--for execution and evaluation--and two kinds of mappings--semantic mappings and referential distance. Examination of the complexities of the…

Discusses basic principles of human-computer interface design that will be helpful to librarians involved in designing effective OPAC (Online Public Access Catalog) screens. Highlights include physical features; general principles; menu screens; commands; inquiry screens; messages, including help screens; and organizational considerations,…

Discusses the integration of videodisc technology into classrooms and presents criteria for evaluating the interactivity of videodiscs. Three levels of interactive videodiscs (IVD) are described, and a criteria checklist is included that evaluates skill development, simulation, feedback, the interaction of the student manual with the electronic…