Synopsis
Today, the development life cycle of 3D User Interfaces (UIs) mostly remains an art more than a principled-based approach. Several methods [1,3,7,8,9,10,11,15,17,18,19] have been introduced to decompose this life cycle into steps and sub-steps, but these methods rarely provide the design knowledge that should be typically used for achieving each step. In addition, the development life cycle is more focusing directly on the programming - sues than on the design and analysis phases. This is sometimes reinforced by the fact that available tools for 3D UIs are toolkits, interface builders, r- dering engines, etc. When there is such a development life cycle defined, it is typically structured into the following set of activities: 1. The conceptual phase is characterized by the identification of the content and interaction requests. The meta-author discusses with the interface designer to take advantage of the current interaction technology. The int- face designer receives information about the content. The result of this phase is the production of UI schemes (e. g. , written sentences, visual schemes on paper) for defining classes of interactive experiences (e. g. , class Guided tour). Conceptual schemes are produced both for the final users and the authors. The meta-author has a deep knowledge of the c- tent domain and didactic skills too. He/she communicates with the final user too, in order to focus on didactic aspects of interaction. 2.
Review
From reviews of the previous editions: "Monumental...Under the guidance of highly skilled and perceptive editors, more than 150 authors, individually and in combination, present an extraordinary amount of information....Overall, these three volumes contain a remarkable series of essays on subjects of great social and public health importance....Characterized by a great breadth of coverage of public health in the developed world...will continue to be a useful source for anyone interested in a wide range of topics."--The New England Journal of Medicine From reviews of the previous editions: "Monumental...Under the guidance of highly skilled and perceptive editors, more than 150 authors, individually and in combination, present an extraordinary amount of information....Overall, these three volumes contain a remarkable series of essays on subjects of great social and public health importance....Characterized by a great breadth of coverage of public health in the developed world...will continue to be a useful source for anyone interested in a wide range of topics."--The New England Journal of Medicine From reviews of the previous editions: "Monumental...Under the guidance of highly skilled and perceptive editors, more than 150 authors, individually and in combination, present an extraordinary amount of information....Overall, these three volumes contain a remarkable series of essays on subjects of great social and public health importance....Characterized by a great breadth of coverage of public health in the developed world...will continue to be a useful source for anyone interested in a wide range of topics."--The New England Journal of Medicine From reviews of the previous editions: "Monumental...Under the guidance of highly skilled and perceptive editors, more than 150 authors, individually and in combination, present an extraordinary amount of information....Overall, these three volumes contain a remarkable series of essays on subjectsof great social and public health importance....Characterized by a great breadth of coverage of public health in the developed world...will continue to be a useful source for anyone interested in a wide range of topics."--The New England Journal of Medicine
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