This study aimed at identifying the most preferred water quality tracking system (WQTS) for adoption and the determining factors for the same among the Langata sub County households in Nairobi city, Kenya. Perrenial m...This study aimed at identifying the most preferred water quality tracking system (WQTS) for adoption and the determining factors for the same among the Langata sub County households in Nairobi city, Kenya. Perrenial municipal water shortage in this neighborhood has forced the residents to depend on vended water supplication but whose quality is not possible to verify at the moment. Accordingly, a mobile phone quality tracing application running on blockchain technology platform was developed to fill the gap of provenance tracking. A non-market discrete choice experiments (DCEs) model was deployed in which four-option attribute bundles;with one being the “status quo” choice were presented to each of the 382 randomly sampled respondents from the five wards within the area. Results indicated that Option 2;the communally managed WQTS emerged as the most preferred choice at 53.9%. Secondly, the male factor was identified as the major determinant to this decision. In conclusion, the study proposes for the installation of this new WQTS which will trigger a 12% adjustment of the average household’s monthly water bill. In addition, this paper recommends for a city-wide assessment of residents’ willingness to pay (WTP) for this WQTS, which it deems as an improved response to water shortage problem. Finally, the study contributes to the application of DCEs model in technology adoption literature.展开更多
农产品的质量追溯信息平台覆盖了农产品供应链的各环节,其使用效率和效果受到两方面因素的影响:(1)数据采集形式对追溯履历(pedi gr ee)获取的及时性、准确性和完备性的影响;(2)数据登记和服务形式对数据安全与查询服务体验的影响。归...农产品的质量追溯信息平台覆盖了农产品供应链的各环节,其使用效率和效果受到两方面因素的影响:(1)数据采集形式对追溯履历(pedi gr ee)获取的及时性、准确性和完备性的影响;(2)数据登记和服务形式对数据安全与查询服务体验的影响。归结起来是农产品质量安全数据的关联价值与可靠性的范畴。文章讨论了在供应链各环节数据化程度基本满足的前提和半开放的应用场景下,通过语义网技术与区块链技术结合,建立起分布式、有信用保障的农产品质量安全追溯应用体验的可能性,并提出一个概念验证系统的设计。展开更多
文摘This study aimed at identifying the most preferred water quality tracking system (WQTS) for adoption and the determining factors for the same among the Langata sub County households in Nairobi city, Kenya. Perrenial municipal water shortage in this neighborhood has forced the residents to depend on vended water supplication but whose quality is not possible to verify at the moment. Accordingly, a mobile phone quality tracing application running on blockchain technology platform was developed to fill the gap of provenance tracking. A non-market discrete choice experiments (DCEs) model was deployed in which four-option attribute bundles;with one being the “status quo” choice were presented to each of the 382 randomly sampled respondents from the five wards within the area. Results indicated that Option 2;the communally managed WQTS emerged as the most preferred choice at 53.9%. Secondly, the male factor was identified as the major determinant to this decision. In conclusion, the study proposes for the installation of this new WQTS which will trigger a 12% adjustment of the average household’s monthly water bill. In addition, this paper recommends for a city-wide assessment of residents’ willingness to pay (WTP) for this WQTS, which it deems as an improved response to water shortage problem. Finally, the study contributes to the application of DCEs model in technology adoption literature.
文摘农产品的质量追溯信息平台覆盖了农产品供应链的各环节,其使用效率和效果受到两方面因素的影响:(1)数据采集形式对追溯履历(pedi gr ee)获取的及时性、准确性和完备性的影响;(2)数据登记和服务形式对数据安全与查询服务体验的影响。归结起来是农产品质量安全数据的关联价值与可靠性的范畴。文章讨论了在供应链各环节数据化程度基本满足的前提和半开放的应用场景下,通过语义网技术与区块链技术结合,建立起分布式、有信用保障的农产品质量安全追溯应用体验的可能性,并提出一个概念验证系统的设计。
