The research reported in this article provides descriptions of design activities and of the evolving designs of expert procedural and expert object-oriented (OO) designers and for novice OO designers with extensive procedural experience. Analysis of procedural and OO designers, in terms of their cognitive activities, design strategies, and final…

This paper reports the findings of an ongoing study of engagement in computer-based learning environments. The purpose of the study was to look at what engages people in computer games and to see how those patterns of engagement might be used within computer-based learning environments. The age of participants ranged from four to adulthood.…

The concepts of usability and user-centered design (UCD) have grown in popularity over the past 20 years as measured by the number of research and mainstream articles devoted to their discussion. As with all new developments, however, there are always the questions of how things work in practice compared to theory. A survey of 83 software…

"Design Inspection Reviews" are structured meetings in which participants follow certain rules of procedure and behavior when conducting detailed readings of design plans to identify errors and misunderstandings. The technique is widely used in the software engineering industry, where it is demonstrably more effective than testing at…

Describes an experiment in which presentation size and text length is varied in a HyperCard application. Students performed a fact-retrieval task from a reference handbook. No interaction is found between these two independent variables. Performance is significantly better for the longer texts, but no significant difference is found for the two…

The development of potentially powerful computer-based tools within rich learning environments is hampered by the constraints of delivery systems (specifically low-resolution, low-real estate displays). In designing a World Wide Web-based tool for manipulating time-based information, the authors have encountered a lack of guidelines or empirical…

Many instructors are expected to design and create Web courses. The design of Web courses can be a difficult task for educators who lack experience in interaction and instructional design. Design patterns have emerged as a way to capture design experience and present design solutions to novice designers. Design patterns are a widely accepted…

This study examined the effectiveness of spaced practice and spaced review when implemented structurally within a computer assisted instruction (CAI) program. The study viewed the comparison of two levels of CAI as instructional treatments. The instructional treatments were developed as structured, which contained spaced practice and spaced…

Users of content-based software programs, including hypertexts and instructional multimedia, rely on the navigation functions provided by the designers of those program. Typical navigation schemes use abstract symbols (arrows) to label basic navigational functions like moving forward or backward through screen displays. In a previous study, the…

The purpose of this study was to determine the effects of presentation interference on students' ability to learn from, and their beliefs regarding, computer-generated presentations. Informed by single-element screen design studies and professional practice, this combined-element study compared a contextually based, intentionally interference free…