Search (107 results, page 6 of 6)

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Editor

Jenkins, H. u. D. Thorburn

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Date

22. 3.2004 14:46:50

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Theme

Grundlagen u. Einführungen: Allgemeine Literatur

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Editor

Schuler, D. u. P. Day

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Footnote

Wenn Wikipedia und blogs nur Ergänzungen zur Kultur und zur Information wären, wäre dies nicht gravierend. Das Problem ist, dass sie Ihren Ersatz geworden sind. Darüber hinaus neben der Unerfahrenheit der Autoren steht auch die Anonymität, die ermöglicht, dass sich zwischen den Amateurs Dessinformanten, getarnten Publizisten (vor allem die Spezialisten in Enten und Desinformation, welche jetzt die ganze Welt direkt und glaubhafter erreichen können) zwischen schieben. Fügen wir diesem apokalyptischen Panorama die intellektuelle Piraterie hinzu, werden wir eine Welt haben, in der die Schöpfer von den Nachahmern verdrängt werden. Dies annulliert die Motivation für die Schöpfung des Neuen. Der Autor gibt uns einige Beispiele, wie die Entlassungen bei Disney Productions. Eine große nordamerikanische Fernsehkette hat teuere Serien in Prime Time aus dem Programm entfernt, weil diese nicht mehr rentabel sind. Andere Beispiele u.a. sind die Verluste der traditionellen Presse und das Verschwinden von spezialisierten Platten- und Bücherläden egal wie gut sie waren. Andere Themen: Invasion der Privatsphäre durch das Internet, E-Mail Betrug, wachsende Kinderpornografie, das Plagiat bei Schülern sind auch in dem Buch enthalten. So sollten wir uns ein furchtbares Bild der von den neuen Technologien verursachten Probleme machen. Aber der Kern des Buches besteht in die Verteidigung des individuellen Schöpfertums und des Fachwissens. Beide sind nach Meinung des Autors die Hauptopfer des Web 2.0. Das Buch ist ein Pamphlet, was im Prinzip nicht Schlechtes bedeutet. Marx, Nietzsche, u..v.a. haben auch Pamphlete geschrieben und einige dieser Schriften haben bei der Gestaltung der modernen Welt beigetragen. Das Buch hat alle Merkmale des Pamphlets: ist kurz, kontrovers, aggressiv und einseitig. Daran liegen seine Kräfte und seine Schwäche. Der Text kann in einigen wenigen Stunden gelesen werden und schärft die Wahrnehmung des Leser vor scheinbar unschädlichen Praktiken: runterladen eines Liedes oder die Zusammenstellung einer Schulaufgabe. Weil er einseitig ist, der Autor absichtlich ignoriert, dass viele dieser Probleme unabhängig des Internets existieren, wie das Plagiat. Er unterdrückt auch Tatsachen, wie die Kontrollmechanismen von Wikipedia, die sie genau so vertrauensvoll wie die Encyclopaedia Britannica machen. Aber gerade weil das Buch einseitig ist, hilft der Autor dem Dialog zwischen den unterschiedlichen Formen, um das Internet zu sehen und zu nutzen. (Aus der Originalrezension in Spanisch von Juan Carlos Castillon, Barcelona, en el Blog Penultimos Dias)

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Footnote

Rez. in: JASIST 58(2007) no.7, S.1066-1067 (X. Zhu u. J. Liao): "The user, without whom any product or service would be nothing, plays a very important role during the whole life cycle of products or services. The user's involvement should be from the very beginning, not just after products or services are ready to work. According to ISO 9241-11: 1998, Part 11, Usability refers to "the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of user." As an academic topic of human-computer interaction, Web usability has been studied widely for a long time. This classroom-oriented book, bridging academia and the educational community, talks about Web usability in a student-friendly fashion. It outlines not only the methodology of user-centered Web site design but also details the methods to implement at every stage of the methodology. That is, the book presents the user-centered Web-design approach from both macrocosm and microcosm points of view, which makes it both recapitulative and practical. The most important key word in Web Usability is "user-centered," which means Web developers should not substitute their own personal preferences for the users' needs. The book classifies Web sites into five types: E-commerce, informational, entertainment, community, and intranet. Since the methods used during Web development differ somewhat depending on the type of Web site, it is necessary to have a classification in advance. With Figure 1.3 on p. 17, the book explains the whole user-centered Webdevelopment life cycle (called "methodology" in this book review), which provides a clear path for Web development that is easy to understand, remember, and perform. Since all the following chapters are based on the methodology, a clear presentation of it is paramount. The table on p. 93 summarizes concisely all types of methods for requirements gathering and their advantages and disadvantages. According to this table, appropriate methods can be easily chosen for different Web site development projects. As the author remarked, "requirements gathering is central to the concept of user-centered design," (p. 98) and "one of the hallmarks of user-centered design is usability testing" (p. 205). Stage 2 (collect user requirements) and Stage 5 (perform usability testing) of the user-centered Web-development life cycle are the two stages with the most user involvement: however, this does not mean that all other stages are user unrelated. For example, in Stage 4 (create and modify physical design), frame is not suggested to be used just because most users are unfamiliar with the concept of frame (p. 201). Note that frequently there are several rounds of usability testing to be performed in the four case studies, and some of them are performed before the physical-design stage or even the conceptual-design stage, which embodies the idea of an iterative design process.

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Footnote

Chapter 2 (Technology and People) focuses an several theories of technological acceptance and diffusion. Unfortunately, Bruce's presentation is somewhat confusing as he moves from one theory to next, never quite connecting them into a logical sequence or coherent whole. Two theories are of particular interest to Bruce: the Theory of Diffusion of Innovations and the Theory of Planned Behavior. The Theory of Diffusion of Innovations is an "information-centric view of technology acceptance" in which technology adopters are placed in the information flows of society from which they learn about innovations and "drive innovation adoption decisions" (p. 20). The Theory of Planned Behavior maintains that the "performance of a behavior is a joint function of intentions and perceived behavioral control" (i.e., how muck control a person thinks they have) (pp. 22-23). Bruce combines these two theories to form the basis for the Technology Acceptance Model. This model posits that "an individual's acceptance of information technology is based an beliefs, attitudes, intentions, and behaviors" (p. 24). In all these theories and models echoes a recurring theme: "individual perceptions of the innovation or technology are critical" in terms of both its characteristics and its use (pp. 24-25). From these, in turn, Bruce derives a predictive theory of the role personal perceptions play in technology adoption: Personal Innovativeness of Information Technology Adoption (PIITA). Personal inventiveness is defined as "the willingness of an individual to try out any new information technology" (p. 26). In general, the PIITA theory predicts that information technology will be adopted by individuals that have a greater exposure to mass media, rely less an the evaluation of information technology by others, exhibit a greater ability to cope with uncertainty and take risks, and requires a less positive perception of an information technology prior to its adoption. Chapter 3 (A Focus an Usings) introduces the User-Centered Paradigm (UCP). The UCP is characteristic of the shift of emphasis from technology to users as the driving force behind technology and research agendas for Internet development [for a dissenting view, see Andrew Dillion's (2003) challenge to the utility of user-centerness for design guidance]. It entails the "broad acceptance of the user-oriented perspective across a range of disciplines and professional fields," such as business, education, cognitive engineering, and information science (p. 34).