• Title/Summary/Keyword: real and formal

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A Study on the Benefit Segmentation of Womens' Formal Suit in Checheon (여성 정장류 소비자의 혜택 세분화에 대한 연구 -제천시 주부들을 중심으로-)

  • 임경복
    • The Research Journal of the Costume Culture
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    • v.6 no.3
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    • pp.34-45
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    • 1998
  • The purposes of this study were 1) to segment the female formal suit market based on clothing benefits sought by housewives in Checheon 2) to compare the real and ideal self-image's relative power on the clothing benefits factor, and 3) to develop a profile of each segment concerning self-image (real and ideal), and demographics. The data wer collected via a questionnaire from housewives. Using factor and cluster analysis, four groups were identified and labeled as 1) Easy care oriented users 2) Aesthetics/fashion oriented users 3) Low benefit oriented users. ANOVA, Duncan's Multiple Range Test, Chi-square statistics revealed significant differences among the three groups according to clothing benefits, real and ideal self-image and demographic variables.

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Monitoring Method for Fault Tolerance of Real-time System (실시간 시스템의 Fault Tolerance를 위한 모니터링 기법)

  • SIM Jae-Hwan;KIM Jin-Hyun;YANG Jin-Seok;CHOI Jin-Young
    • Proceedings of the Korean Information Science Society Conference
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    • 2005.07a
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    • pp.772-774
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    • 2005
  • 안전성이 강조되는 실시간 시스템에서 시스템이 시간의 제약을 만족해야만 한다. 실시간 시스템에서 오류는 잘못된 응답 뿐 만이 아니라 시간적으로 늦은 응답에 대해서도 오류로 분류를 할 수가 있다. 이런 오류들을 모니터하기 위해서 본 논문에서는 커널에 Timed Conformance Monitor를 모듈로 추가하였다. Timed Conformance Monitor를 통해서 실시간 태스크가 시간의 제약을 만족하는지를 분석하고 또한 분석 결과에 따라 오류를 처리할 수 있는 Fault Handler를 추가하여 실시간 시스템에 대한 Fault Tolerance를 보장해 줄 수 있다.

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Modeling and Interoperability Test Case Generation of a Real-Time QoS Monitoring Protocol

  • Chin, Byoung-Moon;Kim, Sung-Un;Kang, Sung-Won;Park, Chee-Hang
    • ETRI Journal
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    • v.21 no.4
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    • pp.52-64
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    • 1999
  • QoS monitoring is a kind of real-time systems which allows each level of the system to track the ongoing QoS levels achieved by the lower network layers. For these systems, real-time communications between corresponding transport protocol objects is essential for their correct behavior. When two or more entities are employed to perform a certain task as in the case of communication protocols, the capability to do so is called interoperability and considered as the essential aspect of correctness of communication systems. This paper describes a formal approach on modeling and interoperability test case generation of a real-time QoS monitoring protocol. For this, we specify the behavior of flow monitoring of transport layer QoS protocol, i.e., METS protocol, which is proposed to address QoS from an end-to-end's point of view, based on QoS architecture model which includes ATM net work in lower layers. We use a real-time Input/Output finite State Machine to model the behavior of real-time flow monitoring over time. From the modeled real-time I/OFSM, we generate interoperability test cases to check the correctness of METS protocol's flow monitoring behaviors for two end systems. A new approach to efficient interoperability testing is described and the method of interoperability test cases generation is shown with the example of METS protocol's flow monitoring. The current TTCN is not appropriate for testing real-time and multimedia systems. Because test events in TTCN are for message-based system and not for stream-based systems, the real-time in TTCN can only be approximated. This paper also proposes the notation of real-time Abstract Test Suite by means of real-time extension of TTCN. This approach gives the advantages that only a few syntactical changes are necessary, and TTCN and real-time TTCN are compatible. This formal approach on interoperability testing can be applied to the real-time protocols related to IMT-2000, B-ISDN and real-time systems.

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Formal Method for Specification and Verification of Behavioral Equivalences of Real-time Navigation and Transportation Systems Based on Abstraction (추상화에 기반을 둔 실시간 항법 및 배송 시스템의 명세 및 행위적 동일성 검증을 위한 정형 기법)

  • Lee, Moon-Kun;Choi, Jung-Rhan
    • The Journal of the Korea Contents Association
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    • v.6 no.11
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    • pp.202-216
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    • 2006
  • A number of process algebras are not well suitable for real-time navigation/delivery systems due to the following reasons: 1) lack of representation of process distributivity over some geographical space and 2) the indistinction of representation of process mobility from process distributivity over the space. To make the process algebra suitable to the systems, it seems to be necessary to separate the space representation from the mobility representation. This paper presents a formal method for this purpose, namely, Calculus of Abstract Real-Time Distribution, Mobility, and Interaction (CARDMI). For analysis and verification of behavioral properties, CARDMI defines a set of the spatial, temporal and the interactive deduction rules and a set of equivalence relations. The rules and equivalences can be abstracted hierarchically due to the spatial abstraction, too. CARDMI can be applied to virtual navigation/delivery system for contents, too.

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The Study on the Korean Plastic Consciousness of the Contemporary Interior Space in Korea (한국의 현대 실내공간에 나타난 한국적 조형의식에 관한 연구)

  • 오인욱
    • Korean Institute of Interior Design Journal
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    • v.13 no.5
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    • pp.74-81
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    • 2004
  • The three basic elements of human life -clothing, food and shelter- had been evolved through different periods and cultural realms, as their spatial applications show distinct characteristics that are manifested through sensibilities only inherent to its specific culture. Especially in the interior spaces, possibilities to approach them in three-dimensional aspects allow formal characteristics to be expressed that are distinct to the country. Formal sensibilities embedded in interior space In Korea also follows such pattern, developed through various contemporary interpretations of Korean traditional formal sensibilities, including harmony with nature, simplicity, lightness, real and fake, and principle of harmony are being redefined by spatially expressed in contemporary language. That is, traditional formal sensibilitiesare filtered through various application methods such as composition, negotiation and modification, accommodating spatial manifestations to be not simply preserved nor replicated, but rather reconstructed through metaphor, symbol, abstraction and contrast. From this perspective, the Korean traditional formal sensibilitiesis not a notion fixed in the past, but a distinct perspectives evolving throughout periods of time that are constantly reconsidered and reinterpreted in our interior space. By examining Korean sensibilities manifested in interior space in the both diachronic aspects of tradition vs. contemporary, as well as synchronic aspects among various disciplines simultaneously, we would be able to generate a linkage to the dichotomous categories of tradition and contemporary.

Real-time Event Processing Role Management System for IFTTT Service (IFTTT 서비스를 위한 실시간 이벤트 처리 룰 관리 시스템)

  • Kim, KyeYoung;Lee, HyunDong;Cho, Dae-Soo
    • Journal of Korea Multimedia Society
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    • v.20 no.8
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    • pp.1379-1386
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    • 2017
  • As the Internet of Things evolves, various IoT services are provided. IFTTT is an abbreviation for If This Then That and refers to a service that links different web-based services. This paper proposes a system that generates and manages rules that combine the possibility of IFTTT service and the real-time event processing according to the concept of IoT service. Conventional database-based data processing methods are burdened to process a lot of data of IoT devices coming in real-time. The IoT device's data can be classified into formal data such as the amount of power, temperature value and position information, and informal data such as video or image data. Thus, this system classifies the data stream of IoT devices coming in real-time using the CEP engine Esper into a file signature table, classifies the formal/informal data, and shows the condition of the device data defined by the user and the service to be provided by applying the service.

Implementation of Web-based Reporting System (웹 기반 리포팅 시스템 구현)

  • Kim, Young-Kyun
    • Journal of the Korea Computer Industry Society
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    • v.7 no.5
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    • pp.495-502
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    • 2006
  • This paper describes how to implement reporting system for web-based information system. Reporting system is the S/W module that user is able to produce output of data in formal format. In Client/Server system, remote user can make formal output with client-side reporting component module. This client reporting component is usually system dependent. With web based information system, intranet, evolving, this client/server system need to he migrated to web-based reporting system. Reporting system component support multi-processing and real-time text/graphic output of server data. Ant Client can save or pint web page of client module. Especially, for real test its function and user interface, this reporting component is adopted in real network management system. The result shows that this reporting system component is very smart and excellent for real time web based monitoring system.

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A Study on the Architectural Planning of Formal and Informal Learning Spaces at the College of Medicine (의과대학의 학습 및 학습공유공간에 관한 건축계획 연구)

  • Choi, Kwangseok
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.27 no.3
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    • pp.7-16
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    • 2021
  • Purpose: This study identified the planning trends for formal and informal learning spaces in the college of medicine through literature reviews. And then, by the analysis of the actual condition of existing domestic facilities, It was organized the architectural planning baseline data and future directions for the formal and informal learning spaces in the college of medicine. Methods: This study was conducted using literature reviews on the existing medical education method and learning space planning. Subsequently on-site surveys and questionnaires were conducted at existing facilities. Results: In the past, learning space of the college of medicine was considered only a formal learning space such lecture rooms, labs. But lately it has been turned into a total learning concept that embraces shared learning spaces such as libraries, student spaces, amenities and common spaces such as lobbies and hallways. ① Formal learning spaces are composed of teaching and practice areas. Since It is the basic functions that comprise the college of medicine, this paper conducted a functional analysis based on the current operating system of the College of Medicine and provided baseline data on architectural planning such as function, layout, zoning, and detailed planning. ② The informal learning sharing space was divided into a library area and a student well-being and convenience area to analyze the real conditions of domestic medical college. In addition, by comparing the trends and differences in foreign medical colleges identified by literature analysis, this paper summarizes the need to revitalize informal learning spaces and their integration into formal learning spaces, architectural planning considerations, etc. Implications: the evolution of the learning method and the flexibility of the learning space bring about changes in the learning space.

A Formal Probabilistic Specification Method for Analysis of Real Time Systems (실시간 시스템 분석을 위한 확률 명세 방법)

  • Jang, Eun-Min;Lee, Chul;Lee, Moon-Kun
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.04b
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    • pp.424-426
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    • 2002
  • PATM(Probabilistic Abstract Timed Machine) [1]은 시스템의 진행 중 다양한 환경 요인에 의해 발생하는 불확실성을 명세하기 위해 개발된 정형 명세 기법이다. PATM으로 명세한 시스템은 도달성 그래프를 분석하게 된다. 본 논문에서는 다양한 물리적 환경 요소를 고려하여 시스템을 분석하는 과정에서 발생하는 실행모델의 복잡도를 줄이기 위한 방법을 제시한다.

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A Technique to Specify and Analyze Reactive and Real-Time Software (반응형 실시간 소프트웨어를 명세하고 분석하기 위한 기법)

  • Younju Oh;Jaemyoung Cho;Junbeom Yoo;Sungdeok Cha
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.10d
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    • pp.19-21
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    • 2002
  • Writing requirements in formal notation for a safety-critical system can improve software quality and reduce the errors that may arise later on in the software development life cycle. In this paper, we propose a formal specification approach used to describe the nuclear control system. The approach is based on the existing AECL approach that was the only formal specification technique applied to nuclear control systems in the past. Although the approach is AECL-based, the complex descriptions of certain requirements have been reduced by using different specification techniques. We discuss the differences and how the proposed approach provides not only specification but also verification environment.

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