• Journal of Information Processing Systems
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• v.11 no.4
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• pp.616-629
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• 2015

A mobile terminal will expect a number of handoffs within its call duration. In the event of a mobile call, when a mobile node moves from one cell to another, it should connect to another access point within its range. In case there is a lack of support of its own network, it must changeover to another base station. In the event of moving on to another network, quality of service parameters need to be considered. In our study we have used the Markov decision process approach for a seamless handoff as it gives the optimum results for selecting a network when compared to other multiple attribute decision making processes. We have used the network cost function for selecting the network for handoff and the connection reward function, which is based on the values of the quality of service parameters. We have also examined the constant bit rate and transmission control protocol packet delivery ratio. We used the policy iteration algorithm for determining the optimal policy. Our enhanced handoff algorithm outperforms other previous multiple attribute decision making methods.

• Journal of Korean Society for Quality Management
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• v.45 no.1
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• pp.55-64
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• 2017

Purpose: A large number of attributes with mixed levels are often considered in the conjoint analysis. The respondents may have difficulty with scoring their preferences accurately because of many attribute items involved in each survey question. We research on the technique for reducing the number of attribute items. Methods: In order to reduce the number of attribute items in a survey question, we make a new attribute by merging two original attributes. A 'No question' option is also included as a new level in a merged attribute. Results: We propose BIB $6^4$ design in the case where we have four attributes with 2 levels and 3 levels, respectively and then analyze all the respondents survey data generated by the repeated simulation study in order to compare various model selection methods. Conclusion: How to reduce the number of attribute items is proposed and how to design and analyze the survey data are illustrated.

• Journal of Digital Convergence
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• v.13 no.2
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• pp.51-60
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• 2015

Recently the sales of PB products attribute shows a steady growth day by day. The consumers buy them due to low prices, however, lately they buy the high premium PB products. And thus the large distributors made a rapid growth of sales. The aim of this study is to analyze what the PB products attributes may affect the consumers' purchase behavior. First, the attribute factors of the PB products: store image, knowledge and information, quality perception, economic value etc. have effects on the consumer attitude after usage experience with PB products. Second, the consumer attitude after usage experience with PB products can have an effect on the purchase behavior. As a result of this study, the various attributes of PB products such as store image, knowledge and information, quality perception, economic value appeared to be positive effect. At the same time the attitude after buying the PB products showed positive effects on the purchase behavior.

• Korean Journal of Clinical Pharmacy
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• v.25 no.4
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• pp.286-295
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• 2015

Objective: This experiment is to study how elderly group and their various lifestyles interact with health functional foods, according to their selection behavior. Different lifestyles will be observed closely, as well as how different health conditions and consumer involvements will affect critical decision making in selecting health functional foods. Method: Theories and discoveries from original advanced research were compared parallel to the new study. Results: First, cluster analysis and exploratory analysis were performed amongst different elder lifestyles. Lifestyle exploratory analysis was used for healthy, unique, leisure, and economical-style elders. Cluster analysis was used for material trend oriented, health oriented, complacent oriented-style elders. Health Functional Foods' selection trait Exploratory Factor Analysis showed that product's originality (function, uniqueness, specialty, compatibility, distributor, expiration date), quality (amount, daily dose, visual representation, accessibility, portability, natural ingredients), and popularity (product container, brand image, taste and smell, advertised product, domestic or import, well-known function) were the three main causes. Secondly, the amount of benefits for the elderly group health lifestyle were affected by 'Interest in health', 'Notability of the health functional food', and 'Functionality approved mark'. Specifically, the importance of, 'Interest in health', 'Notability of health functional food', and 'Functionality approved mark' were noticeably high within health oriented elders. Lastly, after examining the data from elder lifestyle's relationship with health functional food selection trait, all three different results showed equal importance. If you closely examine material trend oriented elderly group, selection trait showed distinctively high regards in 'Fundamental Attribute', 'Typical Attribute', and 'Cognitive Attribute'. Health oriented elders showed their distinctively high regards in 'Natural Attribute', and less consideration in 'Typical Attribute' and 'Cognitive Attribute'. Complacent oriented-style elderly group showed less focus on 'Fundamental Attribute', and even less in 'Typical Attribute', and 'Cognitive Attribute'. Health oriented elderly group concluded with above data from the fact that they showed most importance and involvement in health beneficial products that are scientifically proven. Material trend oriented elderly group showed balanced traits in their concluded data, showing that they prefer function, safety, as well as the brand image and their reputation. Also, they consider the products' outer elements, such as design and product name, in order to sense inner functions. Conclusion: So, Silver Business corporations must develop products to fulfill the market demands, and strategize marketing plans to better target the correct audience.

• Journal of KIISE:Software and Applications
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• v.33 no.3
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• pp.277-288
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• 2006

Product line engineering (PLE) is a new effective approach to software reuse, where applications are generated by instantiating a core asset which is a large-grained reuse unit. Hence, a core asset is a key element of PLE, and therefore the reusability of the core asset largely determines the success of PLE projects. A tore asset is a reusable part not a whole system, and supports not only variable functions but also common functions. However, there are limitations to evaluate reusability of core asset that has these unique characteristics. This paper proposes a comprehensive quality system for evaluating the reusability of core assets, based on ISO/IEC 9126. We first identify the key characteristics of core assets, and derive the set of quality attributes that characterizes the reusability of core assets. finally, we define metrics for each quality attribute. In addition, we provide guidelines for applying the metrics and perform a case study based on rental product line. Using the proposed quality system, reusability of core assets can be more effectively and correctly evaluated.

• Journal of Korean Academy of Nursing Administration
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• v.10 no.4
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• pp.473-484
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• 2004

Purpose: This study was performed to investigate the perception gap about the factor of nursing service quality and the hospital revisiting intend between consumers and providers. Method: The questionnaire was developed and distributed to 300 patients and 210 nurses at the three general hospitals in three provincial city, Korea. For data analysis, SPSS/PC program was used. Result: the 20 attributes of nursing service are perceived as satisfaction factors by consumers and the 14 attributes are by providers. No attributes is perceived as hygiene factor by consumers and providers. The gender of consumers' demographic characteristics has a significant difference and don't have affection for hospital revisiting intent, and the position and education level of providers' demographic characteristics have a significant difference and explain 4.5% of hospital revisiting intent. The 12 attributes of nursing service by consumers and 3 attributes by providers correlate to hospital revisiting intent, and the only 'nurse's sincerely attitude' attribute in consumers and the only 'credible nursing service' attribute in providers explain of hospital revisiting intent. Conclusion: there are definitely perception gap between consumers and providers. So nursing organization have to recognize and try to overcome these perception gaps.

• Journal of the Korea Institute of Military Science and Technology
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• v.27 no.2
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• pp.247-255
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• 2024

Development of electronic warfare(EW) software has become increasingly challenging due to stricter regulations, shorter development cycles, and increased reliability testing. Consequently, software development often proceeds without proper architecture design, which can lead to missing critical quality requirements and potential system redesigns. In this study, we propose using Attribute-Driven Design(ADD) 3.0 to design software architecture specifically tailored for EW systems, enabling a more systematic approach to address quality requirements. The paper presents an overview of EW software and ADD 3.0 methodology, followed by an analysis of the architecture design results using static and dynamic views. The paper concludes by discussing the effectiveness of the proposed architecture design.

• Journal of the Korean Association of Geographic Information Studies
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• v.9 no.2
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• pp.11-19
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• 2006

Sewerage is the system that improves the quality of human life and prevents many disasters such as floods. However the investigators in Korea only have been concerned about the sewer system, so the sewage treatment plant stays in the basic level like mapping. For example, only one attribute can be recognized in the linear object. Because of this limitation, it makes difficult to manage the linear attribute regarding to the sewage pipe plan. And it is impossible to control a partial (point type, line type) attribute changes of the linear object. We will therefore present the applicable method for the attribute changes of the linear object like the sewage pipe plans. For this reason, this paper is designed on the basis of Dynamic Segmentation(DS). DS has the advantage of giving the attribute value to the exact place in the linear object. As a result of using DS, the variety environment changes around the sewage pipes are applied to the building sewerage data. This also makes it possible to get a precise estimation for the maximum dirty water amount.

• Journal of Korean Society for Quality Management
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• v.37 no.2
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• pp.32-45
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• 2009

The importance of quality logistics service has kept growing in fierce competitions. Accordingly, many have tried to assess the logistics service quality and attempted to propose the strategic ways to manage it. However, it has been known that service quality is a multi-dimensional construct and not all quality attributed are viewed as equally important to customers. In other words, each quality attribute has different implications for customer satisfaction. To this respect, the current study attempted to identify the satisfying/dissatisfying quality factor through the Kana approach. In so doing, several satisfying and dissatisfying quality factors in logistics service quality were identified. Further, several academic and practical implications for logistics service quality were proposed.

• Journal of Korean Society for Quality Management
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• v.38 no.1
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• pp.108-114
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• 2010

In this research, we study to find core factor of the perceived quality of internal quality and external quality factors on agriculture products and food industry. By empirical research, we prove that the perceived quality effects to the customer attitude on agricultural products and food Industry. The results of this research can contribute in working-level practical use about quality problem in agriculture products and food industry. The latest interest of customer attitude on agricultural products and food Industry is being rosed.