• International Journal of Internet, Broadcasting and Communication
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• v.12 no.3
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• pp.189-195
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• 2020

Smart contract, one of the applications of blockchain, is expected to be used in various industries. However, there is risks of damages caused by attacks on vulnerabilities in smart contract codes. Tool support is essential to detect vulnerabilities, and as new vulnerabilities emerge and smart contract implementation languages increase, the tools must have extensibility for them. We propose a design model for extensible architecture of smart contract vulnerability detection tools that detect vulnerabilities in smart contract source codes. The proposed model is composed of design pattern-based structures that provides extensibility to easily support extension of detecting modules for new vulnerabilities and other implementation languages of smart contract. In the model, detecting modules are composed of independent module, so modifying or adding of module do not affect other modules and the system structure.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.26
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• pp.87-111
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• 2005

The buyer must pay the price under the contract and must take delivery of the goods of contract. The buyer's obligation to pay the price includes taking such steps and such formalities under the contract. The remedial system of the rights of the seller is easier than that of the buyer, for the obligations of the former are less complicated. The seller has the right to avoid a contract provided two conditions are fulfilled : (a) the buyer must have committed a fundamental breach of contract, or (b) the additional period for performance set by the seller in the case of non-performance must have expired. A decision is more difficult to take in the case of a delay where there is no fixed-term contract, to clarify the situation the seller may set a Nachfrist. It is essential that the contracting parties in Korea should understand the provisions of CISG.

• 한국무역상무학회:학술대회논문집
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• 2004.12a
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• pp.79-104
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• 2004

The buyer must pay the price under the contract and must take delivery of the goods of contract. The buyer's obligation to pay the price includes taking such steps and such formalities under the contract. The remedial system of the rights of the seller is easier than that of the buyer, for the obligations of the former are less complicated. The seller has the right to avoid a contract provided two conditions are fulfilled : (a) the buyer must have committed a fundamental breach of contract, or (b) the additional period for performance set by the seller in the case of non-performance must have expired. A decision is more difficult to take in the case of a delay where there is no fixed-term contract, to clarify the situation the seller may set a Nachfrist. It is essential that the contracting parties in Korea should understand the provisions of CISG.

• Korean journal of food and cookery science
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• v.19 no.1
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• pp.24-33
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• 2003

The purpose of the study was to investigate the HACCP systems of contract foodservice establishments by surveying HACCP plans and prerequisite programs from the twelve HACCP-implemented contract foodservice establishments appointed by KFDA. All the subjects (100%) appeared to develop HACCP plans with their own hazard analysis. Except the two giving no response, it turned out that two establishments had 2 CCPs (20%), four had 4∼5 CCPs (40%) and another four had 9 CCPs (40%). Especially, 'cleaning and sanitizing of raw vegetables and fruits (90%)' and 'cooking (temperature) (100%)' were monitored as CCPs by all the subjects. Only one subject (8.3%) answered that continuous monitoring was not conducted. But the verification, record keeping and internal audits were maintained by all the subjects (100%). Most of the surveyed foodservice establishments maintained various prerequisite programs enough to back up HACCP system.

• Journal of Advanced Navigation Technology
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• v.27 no.2
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• pp.235-246
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• 2023

In the rapid technological development of artificial intelligence (AI), electric vehicles, and robots based the fourth industrial revolution, semiconductors determine the core performance, and semiconductor competitiveness is directly related to national competitiveness. However, the Korean semiconductor industry has continuously weakened its competitiveness in the system semiconductor field, excluding memory semiconductors, so in this study, a new smart contract basedblockchain business model to engage the global market, which is the most urgent need for the growth of Korean fabless system semiconductor industry in recession. F-SBM (Fabless-Smart contract based Blockchain Model) proposed. In this study, through the new F-SBM, it was verified how to engage new customers for fabless firms through smart contract based consortium blockchain regarding technology, economy, and reliability items of fabless. This model has great significance in improving the high entry barriers to engaging new customers for the long-cherished desire of the Korean fabless system semiconductor industry and deriving new growth solutions.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.19
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• pp.67-93
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• 2003

The CISG approach was intended to make the remedial system clear, but produced ambiguity, and complexity. The CISG does not differentiate between main, auxiliary and participatory obligations. There is no distinction between breaches of main or breaches of auxiliary obligations, rather, a distinction is made between fundamental and other breaches of contract. Articles 25 gives the definition of fundamental breach of contract. This concept is the essential of avoidance and remedial system in the CISG. This concept, however, is ambiguous. The fact that the fundamentality of a breach of contract in many cases is the condition for an avoidance of contract, is expression of the trend of the CISG to preserve contracts, which I consider as essential in international trade. The elements which define a substantial detriment are extremely complex. It will become obvious that the relevant detriment is not a static element, but in many instances occurs only when the breach of contract continues. It should be added that it is the circumstances of each individual case which are relevant. It is to be stressed that a fundamental breach of contract must constitute also a non-fulfillment of a contractual obligation.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.239-242
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• 2007

Many contractors have overlooked the construction contract general conditions and it was a bad construction practice. Today, construction project is very complex and complicated. This requires a networked contract document and results in a complicated contract conflict hardly to be solved. Therefore, to reduce the construction dispute and to enhance construction practice, clarification of definition of Owner, several conditions to be revised, insertion of design supervision were suggested in this paper.

• Korean Journal of Construction Engineering and Management
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• v.22 no.4
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• pp.20-28
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• 2021

The Domestic Construction Industry is in the process of changing from a one-sided production method centered on the contractor to a production method in which the order and the contractor can collaborate. Depending on the delivery method, the bid/success method, the contract method, and the degree of business involvement of the order may also vary. In this thesis, in order to introduce 'Construction Management at Risk' suitable for the domestic environment, domestic and foreign institutional analysis, bid process analysis, contract fulfillment and management analysis, post management analysis, and related laws and regulations for legalization In order to suggest a plan for the efficient operation of the system, a system and case analysis of domestic and international construction responsibility type construction project management was conducted. 'Construction Responsible Construction Project Management' defined in the Framework Act on the Construction Industry is divided into the main contract transfer contract, which is a service contract performing pre-con work, and the main contract, which is construction project management and construction contract. Therefore 'Construction Management at Risk' should be regarded as one of the ordering methods rather than a successful bid system, as in the case of overseas, and legalization as a bidding system equivalent to design/construction batch bid and technology proposal is necessary for introduction. In order to introduce 'Construction Management at Risk' suitable for the domestic environment, domestic and foreign institutional analysis, bidding process analysis, contract fulfillment and management analysis, and follow-up management analysis are conducted. A method for efficient operation was suggested so that it can be applied in the domestic market while maintaining the original merits of this system.

• Journal of Construction Engineering and Project Management
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• v.5 no.3
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• pp.18-28
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• 2015

Bidding and contract systems are used for public construction projects to select contractors following fair competition principles and to execute national budgets effectively. Many challenges have arisen due to a lack of transparency and fairness and because bidding practices have been luck-based. Few comprehensive or comparative analyses have been conducted on the performance and limitations of bidding and contract systems, and empirical analyses designed to improve policies on and the practice of such systems are lacking. This study empirically analyzed current bidding and contract systems to seek ways of improving them. The study proposes several alternatives to resolve the problems with and irrationalities of the current system: 1) improving bidding and selection systems by changing them from a luck-based price competition into a technical merit- and value-based competition; 2) improving the assessment criteria to meet the current market level of bid and winning prices; 3) adjusting contractual responsibilities and sharing structures to meet the current trend; and 4) strengthening the competitiveness and expanding the social responsibility-based procurement systems of construction companies.

• Nutritional Sciences
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• v.5 no.2
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• pp.103-110
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• 2002

In Korea, the school foodservice program has been expanding rapidly in recent years, partly as a result of increased government support. With the growth in the number of schools offering foodservice programs, food safety and sanitation concerns have been increasing. To assist with program improvement, a situation analysis was carried out, with the focus on equipment and sanitary management of school foodservice programs under flour different management systems. A questionnaire was mailed to the foodservice directors of 234 randomly selected schools chi[h included elementary, middle and high schools at the national level. Among them, one hundred and sixty-five responses reasonably completed were used for the analysis. This study classified each school's foodservice management into one of four types : independent-conventional, independent-commissary, contract-conventional, and contract-delivery. The results show that the monitoring of employees' health and personal hygiene, and employees' sanitary education was well conducted, but that the sanitary education of the voluntary parent workers was largely ignored. Eighty-six percent of the schools had their drinking water tested for sanitation, and the results showed that more effort is needed in careful management of drinking water in order to prevent foodborne illnesses and bacillary dysentery. In general, contract management showed lower scores in foodservice equipment and their efficiency, compared with independent management. A relatively high number of schools on the contract-delivery management system employed nurses and leachers instead of dietitians and foodservice directors. The adoption of the HACCP (Hazard Analysis Critical Control Point) system was lowest in contract-conventional and contract-delivery management systems, and highest in elementary schools using the independent-conventional system.