• Journal of Electrical Engineering and information Science
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• v.2 no.6
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• pp.183-190
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• 1997

We present competition protocols to speed up the execution of sequential programs on a network of shared workstations in the background by exploiting their wasted computing capacity, without interfering with processes of workstation owners. In order to argue that competition protocols are preferable to migration protocols in this situation, we derive the closed form solutions for the speedup of competition protocols and migration protocols, and simulate both of protocols under comparable overhead assumptions. Based on our analytic results and simulation results, we show that competitive execution is superior to process migration, and that competitive execution can finish sequential programs significantly faster than noncompetitive execution, especially when the foreground load is sufficiently high.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.267-269
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• 2021

Trusted Execution Environment(TEE) is an execution environment provided by CPU hardware to gain guarantee that the execution context is as expected by the execution requester. Remote attestation of the execution context naturally arises from the concept of TEEs. Many implementations of TEEs use cryptographic remote attestation methods. Though the implementation of attestation may be simple, the implementation of verification may be very complex and heavy. By using a server delegating the verification process of attestation information, one may produce lightweight binaries that may verify peers and establish a secure channel with verified peers.

• The KIPS Transactions:PartD
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• v.13D no.5 s.108
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• pp.691-698
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• 2006

The companies need the enterprise-wide support environment to build the competency to gather VOM(Voice of Market) in the process of preparing and implementing the strategy and to help establishing and managing the business process in order to secure the continuous competitive edge The enterprise-wide support environment to establish, operate, improve and evaluate the business process must be carried out. In this paper we define the method to define process and business rule in order to enable accurate execution of the process. Furthermore, collection and refection of accurate data concerning the competency of individuals, the subjects of the process execution, allows prevention of weakness of the process execution result and is the basis for identifying the areas of improvement. Therefore, high visibility can be attained through the work knowledge and processes presented in rules, and it can help firmly establish the process centered work culture (or system) in the organization by process improvement strictly based on data.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.46 no.3
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• pp.221-230
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• 2023

Under increased complexity and uncertainty of overseas construction projects, it is important for construction companies to improve their own project risk management capabilities instead of risk-taking strategies to secure competitiveness in the overseas construction market. Although most of the risks occur in project execution stage, many previous studies focused on planning stage including risk identification and analysis among PRM process. Therefore, this study aims to verify the effectiveness of whole PRM process during project execution stage through empirical study on participants of overseas construction projects. As the result it was found that first, the factor directly affects the project success is the execution process of PRM. It implies that appropriate actions such as appointing charged manager for risks, timely implementation of responding plan, continuous risk monitoring and updating established plan are the key for contribution to the project success. Second, the importance of communication in PRM is also found, which is not conducted at a specific but throughout the entire PRM process and need to be managed as essential factor for successful PRM..

• 제어로봇시스템학회:학술대회논문집
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• 1996.10b
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• pp.1016-1019
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• 1996

This paper discribes automobile processes and introduction for process monitoring and control system for engine plant, truck automobile industries using the MES(Manufacturing Execution Systems) functions.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.637-638
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• 2009

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.45-46
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• 2008

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.1
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• pp.115-123
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• 2021

Manufacturing execution system is a factory information system that handles production-related quality data as well as executes production plans of process unit for all resources in the production process on site. As the 4th industrial revolution, which maximizes an automation and connectivity with artificial intelligence, has become a hot topic, manufacturers are showing interest in building a smart factories, but enormous construction costs and unstandardized production processes are obstacles to smart factory construction. Therefore, this paper designs and implements a manufacturing execution system for building a smart factory in a deterioration factory. we propose a Web-based manufacturing execution system aiming at a smart factory at the basic level for steel wire processing. The proposed system will smoothly support interworking with the existing ERP system using REST APIs, and will consider extensibility so that it can be used in various devices and browsers. We will show practicality by implementing the proposed WoT-based manufacturing execution system.

• Journal of The Korean Association For Science Education
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• v.42 no.1
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• pp.51-60
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• 2022

This study aims to explore the direction of improvement that considers the talent image of science high schools in the admissions process. To this end, first, the talent image and competencies of science high schools were divided into 'publicity' and 'efficiency,' 'execution' and 'achievement' types, and 'publicity & execution' was predominant in most cases. Next, a total of 28 science high school teachers, education experts, and middle school teachers were surveyed on the degree of reflection of talent image and the direction of improvement in the admissions process of three science high schools. The results of the survey are as follows: first, the evaluation of 'publicity' was very limited in the first stage of admissions process, and selection based on 'achievement' was high. Second, there was a strong tendency to select based on 'efficiency & achievement' in the second stage of interview evaluation. Third, we need to improve the selection of students who fit the 'publicity & execution' type of talent image by introducing 'publicity & execution' type of talent image by introducing 'write a competency-oriented self-introduction letter, reflect other subjects' grades and comparative studies in the school life record, and experts' interviews' to the first-stage of admissions process. Fourth, convergence and open-ended questions that enable divergent thinking should be jointly submitted to reflect the 'publicity & execution' type of talent image in the second stage of interview evaluation. In conclusion, the direction of improvement that considers the talent image of science high schools in the admissions process should be changed to competency-oriented in the first-stage of admissions process and in the second stage of interview evaluation consisting of open-ended questions.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.05a
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• pp.710-713
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• 2004

There have been numerous research and development efforts to automate business processes or execute business processes automatically. Especially, Web service is considered to be one of the most promising technologies. Existing Web service composition languages such as BPEL (Business Process Execution Language) and BPML (Business Process Modeling Language) do not provide full semantic support for business processes. This paper proposes a 3-layer model that consists of business process layer and service layer which can seamlessly integrates business process semantics with service semantics. The proposed model and architecture will enable effective management of business processes as well-defined corporate assets, services that execute tasks to achieve goals of business processes, and software components that comprise services.