• 한국주거학회논문집
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• 제17권4호
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• pp.145-153
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• 2006

Ubiquitous space can be described as a combined space of physical space and digital space. Ubiquitous space possesses new possibilities by combining the two. The concept of ubiquitous home will bring new changes in residential space design. First of all, it makes possible for more convenient and secure home. It has to be developed along with city and town level changes as ubiquitous environment. Secondly, concept of extended space as an extension of living space becomes possible by linking with outside spaces. Thirdly, as consumer requirements for residential spaces will become more versatile by social changes, ubiquitous home can be a good means to meet these versatile consumer requirements by accommodating concept of multi-functional space and flexible space. It is quite important to predict user requirements in rapidly changing social environment and versatile personal inclinations. Instead of POE methodology which can analyze and evaluate in exiting types of designs, storytelling methodology can be used to predict and direct for future requirements of living. The methodology makes scenarios of space usage for future living and extracts design requirements for the living. The concept of intelligent space has to be introduced. It is different from digital home that only accomodate digital devices in space. In intelligent space, space itself has to be recognized as an identity that interacts human directly. Intelligent space recognize human requirements and control digital devices as a response. Multi-functional space is closely related with intelligent space that can changes for business, entertainments as well as for rests by user requirements instantly. Flexible space that also intends to meet requirements of mobility and versatility can be attained through the integration of digital technology into current physical mobile systems. Interaction design becomes integral part for ubiquitous space design along with physical design. For the residential space design, digital illiteracy has to be considered for interaction design. Instead of the concept of passive existence, space itself has to be recognized as active subsistence that reacts with human. Intuitive and natural interaction for human will be a key design element for space-human interface design.

• 한국정보과학회논문지:소프트웨어및응용
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• 제27권2호
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• pp.157-167
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• 2000

요구사항이 복잡하고 다양해지면서 정형적인 방법을 이용한 시스템 명세가 방대해지고 이해하기 어려워진다는 문제들이 생겨났다. 따라서 요구사항의 명세를 위해 모듈화 및 객체화 개념 등을 도입하고 있으며, 특히 복잡한 시스템의 경우에 있어서는 요구사항을 하향식 접근 방법에 의해 분할하고, 이들을 각각 정형적으로 명세하여 합성하는 접근 방법을 사용하고 있다. 본 연구에서는 이러한 추세에 따라 요구사항을 계층적으로 모델링하고, 객체지향 개념을 충분히 표현할 수 있는 정형적인 방법을 제안한다. 제안된 객체지향 페트리 넷인 HOONet은 모듈화, 객체화, 추상화, 및 상세화 등의 개념을 지원하도록 설계되었으며, 복잡한 요구사항을 체계적으로 명세할 수 있는 방법을 제공한다. 특히 요구사항이 부분적으로 제시되었거나, 분석이 전체적으로 완료되지 않은 상황에서도 명세 및 검증이 가능하도록 하였으며, 점진적인 명세의 합성을 통해 시스템 모델링이 이루어지도록 하였다.

• Transactions on Control, Automation and Systems Engineering
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• 제2권3호
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• pp.201-206
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• 2000

In this paper, a posture control for nonholonomic mobile robots is proposed with an empirical basis. In order to obtain fast and consecutive motions in realistic applications, the motion requirements of a mobile robot are defined. Under the assumption of a velocity controller designed with the selection guidance of control parameters, the algorithm of posture control is presented and experimentally demonstrated for practicality and effectiveness.

• International Journal of Advanced Culture Technology
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• 제1권1호
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• pp.6-10
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• 2013

The greenhouse control system for educational purpose is designed by personal computer. This system should observe and control the growth conditions for crops in both plastic film and glass greenhouses. In this contribution puts emphasis on construction of greenhouse control system by personal computer under the aim of creating safer, more effective and more economical services. This system is developed for the requirements of the intelligent greenhouse control system and is powered by solar energy. A photovoltaic system with sun tracking module is used for the greenhouse control system.

• 콘크리트학회지
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• 제19권4호
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• pp.25-31
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• 2007

• 한국실내디자인학회논문집
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• 제25권5호
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• pp.148-156
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• 2016

This study proposes the structural model of inpatient's satisfaction with their room. Relationship among patients' privacy, patients' stress, and patients' satisfaction were evaluated and were discussed. Survey research followed the literature review, in which the subjects answered questions of the 12 items for the patients' privacy requirements, 10 items selected from the HSRS, and an item of patients' satisfaction. A total of 120 copies were analyzed through the statistical process using the SPSS Win Program 20.0 and SEM by the AMOS 20.0. Results and conclusions are as follows: (1) the inpatients' privacy requirements was subdivided into 'the reserve factor', 'the territoriality factor', and 'the solitude factor'. (2) The inpatients' stress level was subdivided into 'the relationship factor', 'the unfamiliarity factor', and 'the control factor'. (3) The model of relationship among the subjects' privacy requirements, stress level and their satisfaction with the patients' room showed that the subjects' stress level affected their satisfaction with the patients' room directly and the subjects' privacy requirements gave an direct and indirect effect on their' stress level and an indirect effect on their satisfaction with patients' room.

• International Journal of Computer Science & Network Security
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• 제24권5호
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• pp.40-52
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• 2024

Cyber-Physical Systems (CPS) are introduced as complex, interconnected systems that combine physical components with computational elements and networking capabilities. They bridge the gap between the physical world and the digital world, enabling the monitoring and control of physical processes through embedded computing systems and networked communication. These systems introduce several security challenges. These challenges, if not addressed, can lead to vulnerabilities that may result in substantial losses. Therefore, it is crucial to thoroughly examine and address the security concerns associated with CPS to guarantee the safe and reliable operation of these systems. To handle these security concerns, different existing security requirements methods are considered but they were unable to produce required results because they were originally developed for software systems not for CPS and they are obsolete methods for CPS. In this paper, a Security Requirements Engineering Methodology for CPS (CPS-SREM) is proposed. A comparison of state-of-the-art methods (UMLSec, CLASP, SQUARE, SREP) and the proposed method is done and it has demonstrated that the proposed method performs better than existing SRE methods and enabling experts to uncover a broader spectrum of security requirements specific to CPS. Conclusion: The proposed method is also validated using a case study of the healthcare system and the results are promising. The proposed model will provide substantial advantages to both practitioners and researcher, assisting them in identifying the security requirements for CPS in Industry 4.0.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1991년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 22-24 Oct. 1991
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• pp.322-326
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• 1991

A real time process control package was developed in an INTEL 80386 based PC and MS OS/2 environment using MS-C and MS-FORTRAN. RTACS(Real Time Advanced Control System), process control computer software for distributed or centralized architectures, is a package which meets functional requirements specified for typical continuous process applications like chemical processes. The package consists of 5 parts, which are DB(data base), OCF(Operator Console Functions), CL (Control logic Library), MSM(Multitasking and Scheduling, Manager) and UAI(User Applications Interface), based upon a table and function block architecture to improve the system performance.

• 한국위성정보통신학회논문지
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• 제10권4호
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• pp.52-57
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• 2015

국가환경위성센터 지상국 개발을 위한 기술기준을 도출하기 위하여 국가환경위성센터 구축을 위한 입지 조건과 향후 개발될 국가환경위성센터 지상국 특성을 분석하였다. 또한, 국가환경위성센터 지상국 특성 분석을 통하여 지상국 시스템의 구성과 내부인터페이스를 도출하였다. 본 논문에서는 국가환경위성센터 운영에 필요한 환경위성지상국의 상위 요구사항과 환경위성지상국 및 위성관제국 간의 인터페이스 요구사항을 제시하였다.

• 산업경영시스템학회지
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• 제25권4호
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• pp.22-31
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• 2002

A high-speed rail system represents a typical example of large-scale multi-disciplinary systems, consisting of subsystems such as train, electrical hardware, electronics, control, information, communication, civil technology etc. The system design and acquisition data of the large-scale system must be the subject under strict configuration control and management. Not only the requirements of the large-scale system dictate the contracts with the suppliers but also become the basis for the development process, project execution, system integration, and testing. The requirements database provide the system design specification of all development activities. Using the RDD-100, a systems engineering tool, the Korea next-generation high-speed rail program can establish requirements traceability and development process management in performing the enabling train technology development projects. This paper presents the results from a computer-aided systems engineering application to the Korea next-generation high-speed railway project. Especially, the focus of the study was on requirement management and PBS(Product Breakdown Structure) management.