• Management & Information Systems Review
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• v.35 no.2
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• pp.167-183
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• 2016

This study has recognized easy payment service as one of the new types of application of information and communication technologies and proposed a modified acceptance intention model by adding perceived risk factor based on the unified theory of acceptance and use of technology(UTAUT) and then explored those variables that effect the acceptance intention of consumers. The results of this study can be summarized as the followings. First, expectation on the efforts, social impact have positive effect on the acceptance intention and perceived risk has negative effect on the acceptance intention but expectation on the efforts and promotion condition were found to have no effect on the acceptance intention. Second, among the factors suggested, social impact was found to have more effect of causing the acceptance intention of users than expectation on the efforts and perceived risk. Third, it was found that there is a significant association between the acceptance intention and use behavior of users of easy payment service. This means that, as was reviewed in the preceding researches, the acceptance intention affects actual acceptance behavior of users either directly or indirectly. Fourth, even though innovation resistance has regulation effect on the relationship between expectation on efforts or social impact and acceptance intention, it was found to have no regulation effect on the relationship between perceived risk and acceptance intention.

• Spatial Information Research
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• v.7 no.2
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• pp.175-190
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• 1999

Recently , as GIS technology is rapidly improved and stabilized, there are some needs to reuse pre-developed and powerful GIS technology. GIS standardization based on components and open interfaces becomes a way to solve those reusability of previous GIS technology. This GIS standardization currently focuses on building the GIS Data Infrastructure that is being deployed globally. Especially, OpenGIS consortium which is mainly made up of international GIS leading vendors is announcing some GIS abstract specifications and implementation specifications. This study focuses on how could we design and implement the OLE/COM-based data provider component based on various DBMS or file systems, how could these data provider components be used for enterprise UIS(Urban Information Systems) and how could various formatted GIS data be shared in one system. Also some problems practically caused by an implementation process of data provider component are listed up and some solutions are given. Furthermore, design and analysis of UML(Unified Modeling Language) was reformed through the data provider component development task and this UML methodology is able to indicate a standardized model for newly developed data provider component.

• Journal of the Korea Society of Computer and Information
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• v.16 no.11
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• pp.25-34
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• 2011

In this paper we present an integrated design methodology for relational database based on object-oriented analysis and design. The integrated design methodology is based on business profile and has six phases. In the first phase, business use cases are identified and described by macroactivity diagrams and then the macroactivity diagrams are transformed to detailed business activity diagrams by using objects, object flows and business worker's responsibilities. In the third phase, the detailed business activity diagrams are transformed to business class diagrams that describe the static structure of the entire business system based on detailed business activity diagrams. In the four phase, the business class diagrams are transformed to class diagrams that represent the initial conceptual model of the target relational database. In the five phase, we add additional transformations on the class diagrams with generalization and specialization of associations, roles, activities, additional classes and redundant associations. Eventually, the final class diagrams are transformed to relational database schema. The methodology presented in this paper by applying that proposal for organic connection between object-oriented analysis and design methodology and relational database design methodology. And it will be able to deal with integration management. By the integrated design methodology, we can make more easily software systems based on relational database. In the case study, proposal integrated design methodology applied for a visa issuing system.

• International Commerce and Information Review
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• v.14 no.4
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• pp.409-431
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• 2012

This article deals with the nature of ISDS along with the admissibility thereof, for the settlement of investment disputes between states and nationals of other states. ICSID as an organization of World Bank Group, has been established in 1966 and as of May in 2011, 157 nations ratified its convention. As for the Republic of Korea(ROK) it has been involved in the problematic situation with regard to ISDS of the KORUS FTA in negotiation with the United States. The ruling Grand National Party is pushing the FTA for ratification including ISDS. However, the opposition party, the Unified Democratic Party rejected the ISDS with a view to a toxin infringing on its judiciary sovereignty. The ROK has invested in the US 3.5 times more than the US did in Korea up to now. As a result, it seems that the ROK is more concerned about ISDS than the US is, considering that exhausting local remedy through the US local courts, applying even a municipal ordinance in their decisions which will be unsatisfactory toward the ROK side. The ROK is now struggling with the ISDS as a political issue between the ruling party and the opposition party mostly based on sovereignty with a reference on AUSFTA which excluded the ISDS. Australian model about ISDS has been impacted by the experience from the NAFTA which allowes direct claims against each other(the US against Canada and Canada against the US). It seems not to be much sympathy for developed countries because it has long been held to standards for pressing on developing countries. Australia is also struggling with ISDS from the political point of view likewise the ROK. And the ISDS is destined to the political situations established within the domestic countries among the political parties in relation with the acceptance or rejection of thereof.

• Korean Journal of Construction Engineering and Management
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• v.19 no.4
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• pp.102-110
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• 2018

The study analyzed the effects of the floor plan characteristics on the apartment price under the national housing size in 3 Gangnam districts for decades, the primary apartment markets in Korea. The analysis showed that the storage spaces such as kitchen, warehouses and dressage rooms have a positive effect on the price. Especially, the highly opened space with three-side open plan and the one with the unified type of livingroom, diningroom and kitchen have shown the strong effect on the price. For the kitchen spaces, the I-shaped kitchen tends to be more expensive while a centered living room has a positive effect on the price. These findings have an academic significance as the direct effects of plan characteristics on price has been examined unlike prior research focused on the analysis of trend, basic statistics, and satisfaction level. It is noteworthy that these research finding has identified the productive implication for the future floor plan design and pricing and also be implemented in the purchasing decision making by buyers in the housing market.

• Korean Journal of Legislative Studies
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• v.24 no.1
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• pp.203-239
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• 2018

Responsible government can be achieved when social cleavages are institutionalized via political competition and social interests are represented by responsible parties. This paper aims to investigate the factors that determine welfare expenditures in Korean local governments by analyzing partisanship and political competition factors simultaneously in the same model. This paper also argues that the relationship between the political factors and welfare expenditures in local governments is not linearly increasing as the previous studies claim. This paper examines the welfare expenditures in Korean municipality-level local governments in 2007, 2011, and 2015. The primary findings are: 1) the partisanship of the head of local government and the party distribution of local assembly members have meaningful effect on the welfare expenditures and the divided governments do not show significantly different effect on welfare expenditures from unified governments, which is contrary to the extant studies, 2) the partisan effects of the head and the local assembly vary according to the levels of municipalities (Gu, Gun, and city), mainly due to the difference in types of revenues and expenditures and 3) the relationship between seats shares of progressive parties in local assembly and the welfare expenditure is not linearly increasing one. The effect of seats shares of progressive parties dramatically begins to increase when the seats shares are in 40%-60%. With these findings, this paper highlights the conservative nature of head of local governments with Hannara party (or Saenuri Party), the conservative leaning of independent candidates, and the conservative orientation of local assemblies in the regions dominated by Democratic Party (and its equivalents).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.2
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• pp.394-403
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• 2019

This research focuses on the perception of security screeners using a full body scanner at airport which had been newly introduced to terminal 2 of Incheon Int'l airport. To accomplish the purpose of research, this paper used UTAUT (Unified Theory of Acceptance and Use of Technology) model. Through an empirical analysis, it was proven the factors consisting of technological acceptance and how those factors affect both organizational innovation at airport and job satisfaction of security screeners. According to an empirical analysis, it was found out all the factors of technological acceptance have a significant effect on both organizational innovation and job satisfaction. However, only the effort expectation was shown to have a significant negative effect on the two dependant variables contrary to the other variables (performance expectation, behavioral intention and self efficacy. It was also proven organizational innovation had a moderating effect between technological acceptance and job satisfaction. Such results suggested organizational innovation at airport security division is necessary to enhance job satisfaction using a newly introduced full body scanner.

• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.7
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• pp.847-857
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• 2017

The present situations of the education and training systems for the response to marine HNS spill incidents in domestic and foreign countries were reviewed and the plans to improve domestic system were suggested on the basis of the comparison between domestic and foreign education systems. There were almost no private education and training institutions in Korea, and they have not been activated, compared with those of foreign countries such as USA, Canada, Australia and UK. The domestic marine HNS-related education has been implemented uniformly under Korean government initiative. In addition, there were differences in the targets and duration of the education offered by Korea Coast Guard Academy (KCGA) and Marine Environment Research & Training Institute (MERTI) in Korea. Domestic HNS-related curriculum was relatively simple, compared with the curricula of foreign countries, and has not accepted two levels (operational level and manager level) required in HNS model courses of International Maritime Organization (IMO). The domestic education and training period was short relatively to those of foreign countries. The following suggestions were made to improve the education and training system for the response to domestic marine chemical incidents. In the short term, an HNS education and training management consultation body (tentative name) should be established, with both KCGA and MERTI participating jointly while maintaining the current system of the two institutions (KCGA and MERTI) simultaneously. In the more distant and long term, the HNS-related departments of KCGA and MERTI should be incorporated into a National Marine HNS Response Academy (tentative name) as unified system to enable international competitiveness.

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.5
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• pp.550-559
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• 2019

The sinking of the M/V SEWOL in April 2014 was not a mere marine accident, but a marine catastrophe. This grim case developed into a social tragedy that impinged the national sentiment and communal integrity. It is imperative that thorough provisions and measures be outlined at the national level with regard to massive marine accidents, oil pollution, and natural disasters that might critically affect government affairs. Pivoting on "The Black Swan Theory," a concept of improperly rationalizing a national crisis based on uncertainties, this research assesses a variety of response strategies that minimize the national economic and social damage caused by a large-scale marine disaster. Along with the effort of minimizing any potential defects in each protective barrier, the "Black Swan Detection System of the Marine Disaster" needs to be incorporated to prevent cases wherein such defects lead to an actual crisis. Maritime safety must be systematically unified under a supervisory organization, and a structure for maritime crisis on-scene command and cooperation must likewise be established in order that every force on the scene of a marine disaster may act effectively and consistently under the direction of an on-scene commander.

• Journal of Technologic Dentistry
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• v.41 no.2
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• pp.63-69
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• 2019

Purpose: The purpose of this study is to evaluate the effect of CAD/CAM system milling tool wear on the marginal and internal fit of PMMA implant interim prosthesis three-dimensional manner. Methods: A total of 20 crowns were fabricated with CAD/CAM method. Their designs were unified to first molar of the left maxilla. The Customized abutments were prepared and scanned with on optical model scanner. Five crowns were milled by the newly replaced tool (1st milling), and 15 crowns were milled by 2nd, 3rd, 4th milling tool. The marginal and internal fit of 20 interim crowns were measured using the triple-scan protocol. Results: Statistically significant difference was found between the $1^{st}$ milling group ($51.8{\pm}14.6{\mu}m$) and the $3^{rd}$, $4^{th}$ milling group ($128.6{\pm}43.8{\mu}m$, $146.2{\pm}38.1{\mu}m$, respectively) at the distal margins. In the mesial margins, There was a statistically significant difference between the $1^{st}$ milling group ($63.6{\pm}25.9{\mu}m$) and the $3^{rd}$, $4^{th}$ milling group ($137.2{\pm}25.9{\mu}m$, $186.8{\pm}70.6{\mu}m$, respectively). In the distal line angle, significant difference was found between the $1^{st}$, $2^{nd}$, $3^{rd}$ milling groups and the $4^{th}$ milling group. In the mesial axial wall, significant difference was found between the $1^{st}$ milling group ($52.2{\pm}20.3{\mu}m$) and the $3^{rd}$, $4^{th}$ milling groups ($22.8{\pm}8.8{\mu}m$, $7.8{\pm}5.7{\mu}m$). Conclusion: As a result of the experiment, decrease of the marginal and internal fit was statistically significant as the number of machining cycles increased. In order to produce clinically excellent restorations, it is recommandable to consider the condition of the milling tool wear, when designing the restoration with CAD program.