• Journal of the Korean Society of Clothing and Textiles
• /
• v.30 no.6 s.154
• /
• pp.961-970
• /
• 2006

This study attempted to understand post-purchase consumer return experiences which had not received much attention in consumer behavior research. As a first step to understand return experiences from consumers' viewpoint, the study took an exploratory approach and identified themes and patterns from subjective consumer experiences. Whenever possible, attribution theory was applied to interpret the identified patterns. A total of 99 cases were collected from an open-ended questionnaire and analyzed based on a qualitative method. The reasons of product return was classified into five groups: changing mind; product defects; unsuitable products; products not expected; and for a better deal. External attribution was observed for return decisions caused by consumers' changed mind as well as by product defects. Dissatisfaction with defected products seemed to be intensified or reduced by service failure or success in the post-purchase service encounter. Consumer expectation and situations seemed to affect this process. Overall, the study supported attribution theory in the post-purchase return experience, and insights for research questions were proposed.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.40 no.5
• /
• pp.867-878
• /
• 2016

This study examined the effects on customer delight, satisfaction, and repurchase intention for two reward types by online shopping malls, a hand-written letter and a free gift. Two scenarios to manipulate the rewards provided by online shopping malls were developed. Study 1 revealed that the effects of a hand-written letter on delight and satisfaction were higher than those of a free gift; in addition, delight was more important than satisfaction for repurchase intention. Study 2 examined product quality that is the core function of online purchases by developing 4 scenarios that considered product quality and rewards. The result showed that high product quality caused delight and satisfaction while rewards did not. When product quality was considered, satisfaction influenced repurchase intention more than delight. The study implies that the core function of product quality is more important than rewards for customer delight, satisfaction, and repurchase in online shopping malls.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2006.11a
• /
• pp.161-164
• /
• 2006

The sales of consumer durables are composed of first time purchases and replacement purchases. Since the sales for most mature durable products are dominated by replacement sales, it is necessary to develop a model incorporating replacement component of sales in order to forecast total sales accurately. Several single product diffusion models incorporating replacement demand have been developed, but research addressing the multi-product diffusion models has not considered replacement sales. In this paper, we propose a model based on consumer choice behavior that simultaneously captures the diffusion and the replacement process for multi-product relationships. The proposed model enables the division of replacement sales into repurchase by previous users and transition purchase by users of different products. As a result, the model allows the partitioning of the total sales according to the customer groups (first-time buyers, repurchase buyers, and transition buyers), which allows companies to develop their production and marketing plans based on their customer mix. We apply the proposed model to the Korean automobile market, and compare the fitting and forecasting performance with other Bass-type multi-product models.

• Korean Journal of Computational Design and Engineering
• /
• v.11 no.3
• /
• pp.197-204
• /
• 2006

This paper introduces a development of an internet based robot on the view of product development for hardware and software convergences. The robot can report moving images of remote places and navigate there autonomously. In addition it can be controlled by remote users through wireless internet. Even the control program for the robot can be updated by the remote users during the regular operation mode. This paper provides a consistent product data model and generic product development processes that can support the development of the robot, a convergence of various hardware and software parts. It also includes discussions and experiences about the development of the convergence product.

• Journal of Environmental Science International
• /
• v.24 no.9
• /
• pp.1139-1144
• /
• 2015

The gross domestic product(GDP) measures the welfare of a nation's economy through the aggregation of products and services produced in a nation. Although GDP is a proficient measure of the magnitude of the economy, many economists, environmentalists, and citizens have recently criticized the gross domestic product. The criticism stems from the fact that this measurement of domestic product does not account for environmental degradation and resource depletion. We need to estimate the environmentally adjusted net domestic product. The gross domestic product was 913 trillion won while environmental protection expenditure was 32.9 trillion won by monetary accounts of Korea, 2010. Loss of natural assets was 76.6 trillion emwon by emergy analysis of Korea, 2010. The Green GDP was accounted for 88.0% of the GDP to 803.5 trillion won.

• Journal of the Korea Furniture Society
• /
• v.27 no.2
• /
• pp.96-103
• /
• 2016

This article is to develop test product as adopting motifs from Andong Hahoe Village registered in the UNESCO World Heritage. This study associates physiographic features and images of Hahoe Village with test product. In the research result of this study, the value of product and possibility of success of test product was found as follows. Firstly, Making the puzzle-oriented Desk Service Hahoe Village views by using 22 different styles & functional artworks. Secondly, Producing the tangible forms such as a tree, thatched cottage, arbor, tile-roofed house and ferryboat by casting technique. Thirdly, Designing the shape of the terrain by utilizing computer programing softwares such as CAD drawings and ARTCAM. Finally, Developing the mass-produce goods reflecting region historical and cultural characteristics. I expect this study may increase of interest of our country's culture and play several roles of the bridgehead for product development. Also I reconsider sensitivity recovery of users and our cultural value increase.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2006.05a
• /
• pp.313-314
• /
• 2006

Indicating product quantity by real time can be benefit both worker and management. Worker can compare real product quantity with its target and can adjust working speed to match with goal. Therefore, so called JPH equipment developed to indicate target quantity of product. As a main processor PIC16F877 was used and FND display were used to indicate current time, elapsed time, JPH value and target amount of product. Values like JPH and starting time, etc. are can easily be set by $4{\times}4$ numeric keypad and display datum likes target amount of product, current time and elapsed time, etc are displayed on FND by RS232 serial transmit. The operation of JPH equipment are tested and verified through long term test and are proved acting properly on working conditions.

• Journal of the Korean Society for Precision Engineering
• /
• v.16 no.5 s.98
• /
• pp.132-144
• /
• 1999

In this study, the complexity of the product was evaluated quantitatively considering the product structure, assembly process and disassembly process. To evaluate the complexity of the product, subassemblies of automobile were analyzed and then characteristics of part and subassembly were determined according to product structure, assembly process and disassembly process. Evaluation criteria of complexity were determined considering each characteristics of part and subassembly. Experiential evaluation was accomplished by classified evaluation criteria and time-motion evaluation was accomplished by the relational motion factor with characteristics of part and subassembly in MTM(Methods Time Measurement) and WF(Work Factor). The total complexity of product was determined by experiential evaluation and time-motion evaluation.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
• /
• 1997.11a
• /
• pp.33-36
• /
• 1997

This paper describes an image design process for product development based on human sensibility ergonomics.. The human sensibility about product image can be measured through some statistical methods and translated into product design factors by some mathematical inference logics. This results also can be presented by 3D computer graphic tools, In order to integrate the above processess, a image design process on human sensibility database. Human sensibility database is constructed with the relational ddta of some adjective words and design factors, The next step is to extract the design information from the human sensibility dataabase by fuzzy inference algouithm. This information is used for the input data for the graphic presentation. The final product can be modified according to the customer's requirement.

• Journal of Institute of Control, Robotics and Systems
• /
• v.12 no.12
• /
• pp.1169-1172
• /
• 2006

The prices of chemical products are fluctuated by several factors. The chemical companies can't predict and be ready to all of these changes, so they are exposed to the risk of a profit fluctuation. But they can reduce this risk by making a well-diversified product portfolio. This problem can be thought as the optimization of the product portfolio. We assume that the profits come from the 'spread' between a naphtha and a chemical product. We calculate a mean and a variation of each spread and develop an automatic module to calculate the optimal portion of each product. The theory is based on the Markowitz portfolio management. It maximizes the expected return while minimizing the volatility. At last we draw an investment selection curve to compare each alternative and to demonstrate the superiority. And we suggest that an investment selection curve can be a decision-making tool.