Ein Vorgehensmodell für die Multimedia-Entwicklung mit Autorensystemen     

Ralph Depke  Gregor Engels  Katharina Mehner  Stefan Sauer und Annika Wagner 《Informatik - Forschung und Entwicklung》1999,14(2):83-94

Zusammenfassung.   Multimedia-Anwendungen sind interaktive Softwaresysteme und verlangen als solche, mit softwaretechnischen Methoden erstellt zu werden. Sie werden heutzutage in der Regel mit Hilfe von Autorensystemen entwickelt, die eine Ad-hoc-Entwicklung auf Implementierungsniveau unterstützen. Hierdurch und wegen des Fehlens etablierter Vorgehensmodelle für die Multimedia-Softwareentwicklung reduziert sich der Multimedia-Entwicklungsproze? auf die Implementierungsphase. Dies führt zu den in der Softwaretechnik bekannten Problemen wie mangelnder Konzeption und fehlender Dokumentation. Wir stellen in diesem Beitrag ein Vorgehensmodell für die Entwicklung von Multimedia-Anwendungen vor, in dessen Mittelpunkt eine Analyse- und Entwurfsphase im Hinblick auf eine Implementierung der Multimedia-Anwendung mit einem Autorensystem stehen. Ausgehend von einem frameworkbasierten Analysemodell der Anwendung und einem Modell der Realisierungsm?glichkeiten mit einem konkreten Autorensystem wird systematisch ein Implementierungsmodell auf Instanzebene abgeleitet, das als Eingabe für das Autorensystem verwendet wird. Das postulierte Vorgehensmodell wird exemplarisch für das Autorensystem Director am Beispiel der Dom?ne multimedialer Lehr-/Lernanwendungen erl?utert. Eingegangen am 2. November 1998 / Angenommen am 18. M?rz 1999  相似文献   

Technical management of the development of computer-assisted instruction for complex content     

Billie J. Hughes  Clayton C. Nelson  Ralph Virgo 《Performance Improvement》1986,25(6):19-24

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Training… investment or overhead?     

Ralph K. Scott 《Performance Improvement》1986,25(6):32-33

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Equivalence and concurrent validity of PPVT-R forms L and M for school-age children with special needs     

Ralph J. Worthing  Gary D. Phye  Gerald D. Nunn 《Psychology in the schools》1984,21(3):296-299

The PPVT-R and the WISC-R were administered to 101 special needs students; 55 of the referrals were new and 46 were reevaluation. Concurrent validity within the moderate range (.53 to .67) was established; however, when form L and form M were correlated with the WISC-R, form L yielded consistently higher correlations than did form M. Level of performance as reflected by average performance on the PPVT-R and WISC-R was comparable. No significant difference between instruments was observed except, as anticipated, for the PPVT-R and the WISC-R Performance Scale. No sex differences were observed. Further research focusing on the equivalency of forms L and M and the PPVT-R is recommended, particularly since such equivalence or “lack of” may interact with age of student or nature of classifying condition.  相似文献   

Gabel,S. (Ed.). Behavioral problems in childhood: A Primary Care Approach. New York: Grune & Stratton, 1981, 447 pp., 39.50. Coles,E. M. Clinical psychopathology: An introduction. London: Routledge & Kegan Paul, 1982, 502 pp., 32.00     

Caven S. McLoughlin  Ralph L. Lewis 《Psychology in the schools》1984,21(2):277-278

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Enzymatic decolorization of bacterial pigments from culturally significant marble     

Nick Konkol  Chris McNamara  Joe Sembrat  Mark Rabinowitz  Ralph Mitchell   《Journal of Cultural Heritage》2009,10(3):362-366

Marble monuments and facades are susceptible to microbial colonization. Microbial growth on a marble surface can develop into unsightly red stains whose removal has proven problematic. The purpose of this study was to determine if the red-brown stains on Isamu Noguchi's marble sculpture Slide Mantra (1991) could be caused by pigment-producing microorganisms and to assess the potential of enzymatic stain remediation. Traditional cell culture methods were used to isolate a pigmented bacterium from a stained area of the sculpture. Sequencing and analysis of the 16S rRNA gene identified the organism as a strain of Serratia marcescens, and FT-IR spectroscopy demonstrated that the pigment produced by the bacteria was most likely a prodigiosin. Decolorization of the pigment in solution demonstrated that the enzyme laccase from the fungus Trametes versicolor has potential as a decolorizing agent. This study suggests that enzymatic decolorization may be applicable to stains on culturally significant marble caused by microbial colonization.  相似文献   

Ferrography     

Ralph B. Atkinson  Steven G. Ellis 《Journal of The Franklin Institute》1951,252(5):373-381

A new process is described which we have named “Ferrography.” The process enables graphic information to be recorded on magnetic materials and to be reproduced on paper in visual form. Magnetic inks are available in black or colors, enabling monochrome or color reproductions to be made. The magnetic matrix may be used repeatedly so that multiple printing is possible, and the matrix may be stored indefinitely. The process has advantages: economy and speed of operation, permanence of image, and ability to record any information which is available in signal form, such as instrument data, facsimile transmission, or scanned images.  相似文献   

Research in the cellulose industries     

Ralph H. McKee 《Journal of The Franklin Institute》1930,209(6):719-745

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Private practice of school psychology: Implications from the APA specialty guidelines     

Ralph D. Wenger 《Psychology in the schools》1982,19(4):503-507

A model of school psychology private practice is developed that is appropriate to the unique training and experience of school psychologists and is consistent with the professional functions outlined in the Specialty Guidelines for rhe Delivery of Services by School Psychologists developed by the American Psychological Association. Each of the six functions is examined to see how it could be conducted effectively within the parameters of private practice. Client populations and recruitment efforts are addressed briefly. A cautionary note is sounded about several potential ethical conflicts that have particular relevance to the private practice of school psychology; i.e., competence, communication of services to the public, and conflicts of interest.  相似文献   

Teacher response to collaborative consultation     

Ralph D. Wenger 《Psychology in the schools》1979,16(1):127-131

Investigated teacher responses to a consultant's efforts to foster either a collaborative or an expert consultation relationship via a quasi-experimental study. Eight teachers were exposed to a collaborative approach, and seven to an expert. Teacher satisfaction with the consultation and the extent of their implementation of the recommendations were the dependent variables examined. Teachers exposed to the collaborative approach were significantly more satisfied (p <.05, Mann-Whitney U Test, one-tailed). There was no significant difference in the extent of recommendation implementation of the two groups of teachers, but a consultant approach-teacher experience interaction was suggested. The generalizability of these results and recommendations for design modification for further research are discussed.  相似文献