• 시스템엔지니어링학술지
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• 제14권1호
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• pp.19-27
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• 2018

For the purpose of technology planning and R&D strategy, this research developed a methodology for deriving technical information based on stakeholder requirements using natural language processing technology. The requirements are decomposed into semantic information based on grammar rules, and then the requirement information based technology information can be derived by linking with the three technical information extracted from the patent.

• 정보기술과데이타베이스저널
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• 제6권2호
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• pp.29-43
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• 1999

Object-oriented development methodologies require consistent and seamless object-oriented paradigm to be applied from analysis to testing. Testing must focuses on the state of aggregated objects. This paper suggests testing methods that satisfy such requirements. In order to confirm appropriate implementation of the user requirements, the methods apply extended use case[Jacobson et al., 1992] that are prepared form analysis stage. Testing must be performed based on the use cases because the user requirements are formally documented in the use cases. The notations of the original use case are modified for the state-based testings. The testing methods consist of a unit testing and four-level of integration testing. Particularly, the level 0 testing is based on FREE state machine [Binder, 1995, 1996]. The testing methods have been applied to 3 projects and proved their practicability.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 1991년도 가을 학술발표회 논문집
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• pp.90-95
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• 1991

The Uniform Building Code (UBC) is the most widely used requirements for earthquake resistant design in the United States. In this paper, a mid-rise steel building is analyzed by applying 12 sets of actual strong-motion earthquake data that have been scaled to acne 2B levels. The simply extrapolated ground motion displacements are used for the dynamic loads. The results of dynamic analyses for a 10-story steel building are compared with the static and dynamic analysis requirements of UBC-88. It was found that computed lateral fortes using UBC-88 static procedure differed by about 60 percent depending on whether the natural period was computed using the UBC empirical method or the UBC recommended Rayleigh's method. The lateral fortes computed from the UBC response spectra were more than 10 times greater than those computed by UBC static procedures. The lateral forces obtained from both linear and nonlinear analyses using 1989 Loma Prieta ground mot ions compared very well with UBC response spectra results.

• Asia pacific journal of information systems
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• 제11권1호
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• pp.155-173
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• 2001

Assessing user information requirements is one of the most important issues in building Executive Information Systems. Application of the Balanced Score Card method as a tool for strategic planning and performance measurement has been increasing recently in various fields. However there has been meager attempt to apply the method to user requirement analysis, in particular, for small and medium sized companies. This study surveyed 79 executives of small and medium sized companies in Korea. The study founds the applicability of BSC for analyzing user requirements of EIS, in terms of financial, customer, internal process, learning and growth perspectives. The paper also suggested several guidelines for using BSC to improve user satisfaction to the practitioners who are operating or planning to build EIS in the small and medium sized companies.

• 대한기계학회논문집B
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• 제27권1호
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• pp.117-124
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• 2003

Thermal design fur satellite propulsion system has been performed. Overall design requirements and the constitution for propulsion system is described. To meet the thermal design requirements, both a primary and a redundant heater circuit, each with two thermostats placed in series, will protect each hydrazine-wetted components, even if one heater circuit fails to operate. Heater power is turned off if any one of these thermostats is opened at its higher setpoint. Thus, even if one thermostat is failed closed, the second thermostat will turn off the heater. All such components shall be insulated with MLI. Propulsion heater sizing based on the constant worst cold case condition is conducted through thermal analysis. All heaters selected fur propulsion components operate to prevent propellant freezing satisfying the thermal requirements for the propulsion subsystem over the worst case average voltage, i.e. 25 volts.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2005년도 춘계학술대회논문집
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• pp.805-808
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• 2005

This paper is a study on an optical bench satisfying stiffness and thermal pointing error requirements for LEO earth observation satellite. According to shape and stiffness requirements, optical bench type 1 is designed. Because type 1 does not satisfy the thermal pointing error requirement, an optical bench type 2 is suggested. Although the type 2 has better results than type 1, it still does not meet the thermal pointing error requirement. Using the results of optical bench type 1&2, the optical bench type 3 is finally designed, which satisfies both the stiffness and thermal pointing error requirements.

• 품질경영학회지
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• 제28권4호
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• pp.106-118
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• 2000

We analyze the current quality management status for firms producing steel outfits of ships and develop an efficient QMS appropriate to Korean steel outfit industry. The firms recently obtained ISO 9000 certificates and are located in Pusan ${\cdot}$ Kyungnam district of Korea. The analysis is based on the audit results from ISO 9000 for seven steel outfit firms during last three years. We find out major requirements of ISO 9000 and investigate statistical relationship among major requirements, types of data, and groups of firms by using a statistical package, SAS. Recommendations regarding add-on requirements are suggested to install an efficient QMS in Korean steel outfit firms.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1858-1863
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• 2007

Railway systems are one of the best mass transit systems and many people have prevented incidents/accidents and reduced fatalities remarkably. Especially we have tried analyzing and finding the measures to prevent catastrophic accidents like train collision, derailment and fire because of their severities. It is important to assess the safety performances of railway systems like crash-worthiness analysis, body, derailment affecting factor analysis and so on for reducing and finding out the reasonable causes of disastrous accidents. In this paper the refined top-level system requirements to build-up national infra for assessing railway safety performance and the procedures and methodology for reviewing, verifying and validating infra requirements are explained. Basically the authors have used system engineering processes to analyze and verify the requirements and installation procedures and have tried maximizing the practicality of the various safety assessment systems.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권6호
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• pp.2087-2103
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• 2014

What is an ideal authentication method for smartphone banking services? And what are the critical elements to be considered when designing it? To provide valuable insight for these questions, this study investigates various authentication requirements to be considered in smartphone banking service with the aspect of security, convenience and cost. By applying Analytic Network Process (ANP), this study first analyzes priorities among the requirements and then draws an ideal authentication method for smartphone banking service. Moreover, a sensitivity analysis has been conducted by varying the relative importance of several requirements. The results from the judgment of 72 experts revealed that, although Korean government has obliged the use of Public Key certificate, OPT and biometric alternatives may prove to be more appropriate for the smartphone banking service. These results will contribute to the provision of more secured and convenient smartphone banking services.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.124-125
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• 2018

The objective of this study is analyzing of requirements for improvement of the work-life balance of construction managers working in Korean construction companies. A survey has been conducted to analyze the requirements for improvement of construction managers. The survey was conducted on construction managers working in the field of architectural construction. 59 field managers working in 18 Korean construction companies responded to the survey. Upon analysis of the survey, the working hours were excessive and recreational time was very poor for the construction managers. There were differences in the answers regarding the areas that require improvement in the working conditions based on the age groups of the construction managers. A majority of young technicians selected that the recreational time and content of work require improvement, and technicians with a lot of experience selected that the stability of occupation and wage require improvement.