One hundred and four undergraduate and graduate students completed five tasks in the study. The results indicated the number of links had statistical significant effects on students' learning performance and attitude toward hypermedia systems. Possible causes may have been disruptive information processing and cognitive overlaod occurred in the reading process. Based on the findings, the study recommends fewer links in a hypermedia instructional system when learning, especially reading comprehension, is involved, task analysis in designing hypermedia systems, and the use of link-filtering systems in hypermedia systems. A Hypermedia Document Format for Spatial Hypermedia Kai Warendorf Raistinger Str.
Every object has a set of coordinates that define a position in the two-dimensional space.
This paper describes a strategy for storage and retrieval of hypertext with an object-oriented hypermedia format. Although a document format is strictly not part of the user interface, it does encourage an object-oriented design of the user interface, which has several consequences. As will be shown in this paper, the hypermedia document structure has influenced the structure and properties of the hypermedia user interface. In addition, the document structure also has consequences for the hypermedia authoring process.