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Achievement of many long-term goals requires sustained practice over long durations. Examples include goals related to areas of high personal and societal benefit, such as physical fitness, which requires a practice of frequent exercise; self-education, which requires a practice of frequent study; or personal productivity, which requires a practice of

Achievement of many long-term goals requires sustained practice over long durations. Examples include goals related to areas of high personal and societal benefit, such as physical fitness, which requires a practice of frequent exercise; self-education, which requires a practice of frequent study; or personal productivity, which requires a practice of performing work. Maintaining these practices can be difficult, because even though obvious benefits come with achieving these goals, an individual's willpower may not always be sufficient to sustain the required effort. This dissertation advocates addressing this problem by designing novel interfaces that provide people with new practices that are fun and enjoyable, thereby reducing the need for users to draw upon willpower when pursuing these long-term goals. To draw volitional usage, these practice-oriented interfaces can integrate key characteristics of existing activities, such as music-making and other hobbies, that are already known to draw voluntary participation over long durations. This dissertation makes several key contributions to provide designers with the necessary tools to create practice-oriented interfaces. First, it consolidates and synthesizes key ideas from fields such as activity theory, self-determination theory, HCI design, and serious leisure. It also provides a new conceptual framework consisting of heuristics for designing systems that draw new users, plus heuristics for making systems that will continue drawing usage from existing users over time. These heuristics serve as a collection of useful ideas to consider when analyzing or designing systems, and this dissertation postulates that if designers build these characteristics into their products, the resulting systems will draw more volitional usage. To demonstrate the framework's usefulness as an analytical tool, it is applied as a set of analytical lenses upon three previously-existing experiential media systems. To demonstrate its usefulness as a design tool, the framework is used as a guide in the development of an experiential media system called pdMusic. This system is installed at public events for user studies, and the study results provide qualitative support for many framework heuristics. Lastly, this dissertation makes recommendations to scholars and designers on potential future ways to examine the topic of volitional usage.
ContributorsWallis, Isaac (Author) / Ingalls, Todd (Thesis advisor) / Coleman, Grisha (Committee member) / Sundaram, Hari (Committee member) / Arizona State University (Publisher)
Created2013
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Description
This DMA project (in piano performance) consists of a concerto composed for trumpet and piano duo with orchestra and an analytical document that accompanies it. The text portion of this paper discusses the different compositional aspects of Rapsodia Camaleónica, including instrumentation, form, influences and the performers' perspective. The work is

This DMA project (in piano performance) consists of a concerto composed for trumpet and piano duo with orchestra and an analytical document that accompanies it. The text portion of this paper discusses the different compositional aspects of Rapsodia Camaleónica, including instrumentation, form, influences and the performers' perspective. The work is scored for a medium-sized orchestra: 2 flutes (flute 2 double piccolo), 2 oboes, 2 clarinets, 2 bassoons, horn, trombone, bass trombone, 4 percussionists (timpani, snare drum, crash cymbals, suspended cymbal, castanets, güiro or carrasca, shekere, whip, xylophone, triangle, pandeiro, tam-tam, wood blocks, 2 congas, glockenspiel, 3 tom-toms, bass drum) and strings. It is written in one multi-sectional movement with a duration of approximately twenty-three minutes. The full score is attached as an appendix. The influences in Rapsodia Camaleónica range from the western classical tradition to world music to urban dance music, all of which fuse together in a work that blends this eclectic mix into a unified whole. This composition is intended as an addition to the piano concerto repertoire from Latin America, which includes compositions by Carlos Chávez, Manuel María Ponce (both Mexican), Alberto Ginastera (Argentinian), Camargo Guarnieri and Heitor Villa-Lobos (both Brazilian). It is the composer's desire to add a Colombian piece of universal appeal to this list.
ContributorsArias-Esguerra, Mauricio (Author) / Meir, Baruch I (Thesis advisor) / DeMars, James (Committee member) / Hamilton, Robert (Committee member) / Pagano, Caio (Committee member) / Rogers, Rodney (Committee member) / Arizona State University (Publisher)
Created2012