Browsing by Author "Tang, Ying-Hwa"

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A Diffusion Model to Growth Phase Forecasting of 3G Industry in Taiwan
(2008)
Lin, Chen-Chun
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Tang, Ying-Hwa
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Shyu, Joseph Z.
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Li, Yi-Ming
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科技管理研究所
This study provides a system dynamics approach on the foundation of BASS diffusion model and constructing model upon the 3G adoption critical factor in the viewpoint of new product development. This thesis is to predict the future demand for 3G mobile for diffusion of innovation, whose model is often used to predict the demand for new products and discuss the dynamic process of diffusion. Accordingly, this study can provide better efficient advice to the industry of the up-coming 3G environment. This research adopts diffusion model, least squares analysis and logistic analysis to forecast the future demand. The data is taken from Telecommunications Carriers Association subscriber database in Taiwan in 2007. These analysis tools were MatLab, LogletLab and SPSS. Thus, the aims of present research are: to investigate this innovation diffusion; to identify adoption by potential adopters with potential non-adopters of the innovation. The methodology was tested, compared and results revealed that the prediction capability of the proposed system dynamics methodology access to ODE-EULER is better than those methodologies of LogletLab and least squares analysis.
Service Innovation Elements in Energy Service Company (ESCO) Business Model
(2012)
Shyu, Joseph Z.
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Wang, Jen-Sheng
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Peng, Chih-Chiang
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Tang, Ying-Hwa
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科技管理研究所
In recent years, Energy Service Company (ESCO) has been vigorously promoted around the world to engage the challenges of energy efficiency and security, as well as the intensification of the sustainable environment management. Since ESCO were launched in 1980s, ESCO has gradually integrated various service innovation elements, may including innovation sources, service value activities and service externalities. This study aims to assess the service innovations and the service package structure within ESCO. The fuzzy analytic hierarchy process (FAHP) is used to resolve the multi-goal problem for achieving our research purposes. That is, this research attempts to reveal the service package structures for the purposes of ESCO with having service innovation elements. The results first show that service value activities is the most important object to the development of service innovations within ESCO, followed by the service externalities and innovation sources. Additionally, selective service package structure would be the more advantageous service package structure utilized in meeting the ESCO goals.