• The Korean Publising Journal, Monthly
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• s.228
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• pp.2-3
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• 1998

환율 폭등으로 외국서적 수입업계가 어려움에 처했다. 환율변동제를 적용한 후 외서 가격은 30%가량 오르고 구매자 수는 격감했다. 무분별한 외서 수입을 자제하고 환율난제를 풀어갈 대책 마련에 지혜를 모아야 할 때다.

• 한국벤처창업학회:학술대회논문집
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• 2008.11a
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• pp.257-282
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• 2008

RFID (Radio Frequency Identification) is regarded as a core technology of ubiquitous computing. Although it has some technical limitations such as technological standardization of RFID tags as well as economical limitations, many companies around the world have already accepted RFID to improve their management efficiency. In this regard, this study is to meet with results that the adoption of RFID technology willbring opportunities that companies' operational process are improved and customer satisfaction is highly strengthened. This research focuses on providing more understanding for building RFID marketing strategy to suppliers who want to sell their RFID products to customers through analyzing purchasing process. The findings are as follows; First, the study shows that buying center members usually take product reliability and precision of technical specification in the case of new-task buying situation while they put their first purchasing priority on prices in the straight rebuy. Second, the finding presents that in new-task buying situation and the straight rebuy purchasing personnel get information about new products through product performance test, organizational engineers, opinions from other companies' purchasing personnel, and checking out samples. Third, this research demonstrates when it comes to purchasing risk in their first purchasing, the persons who are in charge of material purchasing are inclined to be aware of the risk most in technical problems, followed by financial problems and time delay problems in order. And in addition to those risks are mentioned above, once-again-purchasers take the risk like an opportunity loss for better products into consideration. Fourth, the study shows that the role of concerning departments makes no difference in each purchasing stage. Accordingly marketers need to beef up the differentiated strategy to persuade their customers. Fifth, the findings of this study demonstrate that purchasing decision making is much influenced by the final users. So suppliers are supposed to perform the most active marketing strategy at the first stage of purchasing through various resources. Finally, the study presents that the suppliers who will have had close relationships with their customers need to give consistent information to them so that their customers can have lower motive in purchasing products from competitors.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.04a
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• pp.978-983
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• 2000

소비자의 제품 구매에 대한 의사 확인은 전자상거래 시스템(EC System)과 연동한 전자우편 시스템 (E-mail system)에서 발송해 오는 전자우편과, 전자상거래 시스템에 종속적인 관리자도구를 통해 알수 있다. 이러한 정보는 소비자와 판매자간의 시간차를 유발하며, 소비자의 또다른 신속한 정보 획득 요구를 해소 시켜 주지 못한다. 전자우편은 그 자체로 데이터화 될 수 없고 전자상거래를 전략적으로 운영하기 위한 자료로 활용되기 어렵다. 뿐만 아니라 현재의 전자상거래에 있어서 소비자의 대량 구입에 대한 환경은 기존의 일반 상거래와 다른 체계를 갖고 있어서 대량 구매시 판매자와의 직접적인 상담과 할인정보 획득에 대한 소비자와 판매자의 동시적 불만을 유발하고 있다. 이에 따라 본 논문에서는 위와 같은 문제에 대하여 소비자의 구매 의사를 전담하기 위한 에이젼트 시스템을 제안하였고, 전자상거래 시스템에서 발생하던 소비자와 판매자 사이의 시간차와 전략적 운영에 대한 소비자 구매의사 정보의 재이용 문제를 해결하기 위한 것에 대하여 주로 다루고 있다.

• The KIPS Transactions:PartB
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• v.12B no.4 s.100
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• pp.443-450
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• 2005

Digital fingerprinting is a contents-protection technique, where customer information is inserted into digital contents. Fingerprinted contents undergo various attacks. Especially, attackers can remove easily the inserted fingerprint by collusion attacks, because digital fingerprinting inserts slightly different codes according to the customers. Among collusion attacks, averaging attack is a simple, fast, and efficient attack. In this paper, we propose a video fingerprinting system that is robust to the averaging attack. In order to achieve code efficiency and robustness against the averaging attack, we adopt anti-collusion code (fingerprint code) from GD-PBIBD theory. When the number of users is increased, the size of fingerprint code also grows. Thus, this paper addresses a zero-based code modulation technique to embed and detect this fingerprint code efficiently. We implemented a blind video fingerprinting system based on our proposed technique and performed experiments on various colluding cases. Based on the results, we could detect most of colluders. In the worst case, our scheme could trace at least one colluder successfully.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.274-277
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• 2008

Demand analysis plays a key roles in helping decision making in all fields of production activities. In order to analyze the demand of the client, items on the preference motivation for CM service has to be formalized, but it is difficult to establish. The purpose of this study is to present items of demand analysis for CM Clients. For this, the factors affecting purchase of CM service for CM Clients are analysed through literature review in other various areas about intend to purchase. Through this, increase the importance of the CM demand analysis and understand the service demand, the growth of the CM market, important foundation.

• The Journal of the Korea Contents Association
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• v.12 no.8
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• pp.471-483
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• 2012

The demand of using educational applications for 'smart' devices has recently increased. Accordingly, this study analyzed the satisfaction of educational applications and the factors which affect to purchase intention suggesting optimal development and use for the future. Based on searching for the theoretical background, the research model for the study was set: Appropriateness, interactivity, amusement and ubiquity were designated as independent variables, consumer satisfaction as parameter variable, and purchase intention as dependent variable. Through conducting structural equation modeling with the variables, the results showed that appropriateness, amusement and ubiquity had significant impacts on consumer satisfaction and purchase intention of educational applications. The results were expected to give suggestions as presenting guideline for educational application, improving mobile learning and vitalizing mobile contents.

• Journal of Internet of Things and Convergence
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• v.5 no.2
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• pp.7-13
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• 2019

As online shopping is activated by the development of the Internet, consumers' purchase form is changing from the traditional face-to-face purchase method to online purchase method. Many sellers have flowed into shopping malls, and competition among sellers is very intense. Therefore, sellers in shopping malls need to establish rational marketing strategies by analyzing consumer purchase patterns and product sales trends. In this paper, we analyzed the purchase price of consumers by analyzing the product price, rating, and sales quantity of competitors who sell the same product in open shopping malls by time zone. In addition, the collected information was visualized in a chart so that the company's and competitors' sales trends could be easily compared. Using the above system, it is possible to predict the sales volume through the analyzed purchasing pattern and to select the reasonable price of the product by grasping the sales trend.

• Journal of Energy Engineering
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• v.29 no.2
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• pp.40-60
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• 2020

When various kinds of products are produced from a single energy system, the methodology which allocates the common cost to each product cost is very important because it is directly related with the profit and loss of producer and purchaser. In the cost allocation methodology of electricity and heat for CHP, there are heat method, work method, benefit distribution method, exergy method, and so on. Benefit distribution method is the most widely known worldwide, and exergy method is widely recognized among thermal engineers. As a result of review, it is judged that the rationality of benefit distribution method is low because the result deviates from common sense, and the rationality of exergy method is high because the result consistent with common sense. In accounting, it is calculated as merit methodology and the result is used for negotiations between producer and buyer, but In thermal engineering, the rationality of exergy methodology is described only as a thesis. The purpose of this study is to compare and examine the rationality of merit methodology and exergy methodology, and the aim is to describe in detail in order that producer and buyer can understand the rationality of each methodology.

• 월간 기계설비
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• s.269
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• pp.58-63
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• 2012

국민권익위원회는 지난 11월 1일 공공기관이 물품구매와 관련한 계약을 할 때 생길 수 있는 불합리한 관행을 개선하기 위해 '물품구매 계약의 합리성 제고 방안'을 마련하여 관계 부처인 기획재정부 및 행정안전부에 제도개선을 권고했다. 권익위는 '국가를 당사자로 하는 계약에 관한 법률 시행령'에 시설공사와 물품구매 등에 대한 정의 규정을 신설하는 등의 발주방식 판단기준을 마련할 것을 권고했다. 또한 시설공사를 물품제조나 구매로 발주하지 못하도록 입찰공고 시에 발주방식 준수의무를 '정부 입찰계약 집행기준'과 '지방자치단체 입찰 및 계약집행 기준'에 포함하는 방안도 제시했다. 아울러 공사나 물품, 용역 등 계약 목적이 겹치거나 혼합될 경우에는 주된 목적으로 발주방식을 결정하도록 하는 내용을 계약법에 신설하는 방안도 권고안에 포함했다. 국민권익위 관계자는 "이번 개선안이 수용되면 물품구매계약 과정에서 발생하는 불합리한 관행 및 제도가 개선되어 물품구매 계약의 합리성이 제고될 것"이라고 밝혔다.

• Journal of KIISE
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• v.42 no.10
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• pp.1286-1293
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• 2015

Most e-marketplaces build a reputation system that provides potential buyers with reputation scores of sellers in order for buyers to identify the sellers that are more reliable and trustworthy. The reputation scores are computed based on the aggregation of buyers' ratings. However, when these ratings are used to compute the reputation scores, the existing reputation systems do not make a distinction according to the following two criteria: the capability of the seller and the quality of an item. We claim that a reputation system needs to separate the two criteria in order to provide more precise information about the seller. In this paper, we propose a method to compute seller's reputation by separating the rating into the seller's score and the item's score. The proposed method computes the reputation of the seller's capability by using only the 'seller's score' and helps potential buyers to find reliable sellers who provide fast delivery and better service. In experiments, we propose a simulation strategy that reflects the real life of an E-marketplace and verify the effectiveness of our method by using the generated simulation data.