Practical problems with multilevel techniques are discussed. These problems relate to terminology, computer programs employing different algorithms, and interpretations of the coefficients in either one or two steps. The usefulness of hierarchical linear models (HLMs) in common situations in educational research is explored. While elegant, HLMs…

Examines reasons for cataloging backlogs in libraries and describes a preliminary theory of backlog dynamics. Formulas for predicting backlogs are discussed, backlog models are explained, the use of computer simulation software to form models is described, and further research is suggested. (five references) (LRW)

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…

Examines the information communication process and proposes a fuzzy commonality model for improving communication systems. Topics discussed include components of an electronic information programing and processing system and the flow of the formation and transfer of information, including DOS (disk operating system) commands, computer programing…

Presents results of CAMCE (Computer-Aided Multimedia Courseware Engineering) project research concerned with definition of a methodology to describe a systematic approach for multimedia courseware development. Discussion covers the CAMCE methodology, requirements of an advanced authoring environment, use of an object-based model in the CAMCE…

Discusses instructional design and describes the development of a support system for course design called AGD (French acronym for Didactic Engineering Workbench). Highlights include categories of computer tools that support course design, including computer-assisted instruction, instructional design expert systems, and job aids; knowledge modeling…

Describes how an interactive text retrieval system with natural language queries is used in information studies education. The benefits of programing methods involving encapsulation and inheritance are explained in terms of reusability and extendibility, and future plans to produce a library of reusable objects for information retrieval are…

Maintains that an understanding of software development models gives insight into the problems of writers and the teaching of technical communication. Focuses on analogies between the two processes and domains, and suggests concrete ways for writers to proceed beyond analysis. (SR)

Discusses recent advances in cognitive theory and the design of computer-based instruction and suggests implications for the design of authoring tools and tutoring system shells. Highlights include the design of courseware; advanced organizers; knowledge representation; design evaluation; models of knowledge; models of errors; and models of…

Presents a texture-based image-retrieval system for browsing large-scale aerial photographs. System components include texture-feature extraction, image segmentation and grouping, learning-similarity measure, and a texture-thesaurus model for fast search and indexing. Testing has demonstrated the system's effectiveness in searching and selecting…

Discusses the design of computer applications, focusing on understanding design representations--what makes design representations work, and how, in different contexts. Examines the place of various types of representation (e.g., formal notations, models, prototypes, scenarios, and mock-ups) in design and the role of formalisms and representations…

Describes the use of object technology for the development of information management systems. Notes the benefits of modelling complex real-world systems and the increases in productivity leading to flexible, reusable, and maintainable software. Discusses problems, support for multimedia data types, and storage capabilities. (AEF)

The PC-based software technology, a computational-modeling course, for undergraduate chemistry students helps them to understand the molecular modeling in a better way. This course would be able to accommodate a wider array of topics and a greater depth of theory as the modeling is increasingly incorporated into the chemistry curriculum.

Over the past decade the software products available for solid modeling, dynamic, stress, thermal, and flow analysis, and computer-aiding manufacturing (CAM) have become more powerful, affordable, and easier to use. At the same time it has become increasingly important for students to gain concurrent engineering design and systems integration…

Video self-modeling (VSM) is a relatively new technique for modifying and training behaviors and has accumulated a relatively impressive track record in the research literature. Using only positive examples, VSM gives persons the opportunity to view themselves performing a task just beyond their present functioning level via creative editing of…