• Title/Summary/Keyword: Formal description

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Transformation Methodology from Specification of ESTELLE to VHDL (ESTELLE 명세에서 VHDL 명세로의 변환 방법론)

  • 이미경;이익섭;김선규;조준모;김성운
    • Journal of Korea Multimedia Society
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    • v.3 no.2
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    • pp.174-183
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    • 2000
  • Formal methods for protocol description of a system is based on the implementation id S/W. However, the importance of H/W implementation for a parts of protocol design is increasing. The combination between H/W and IP technology is needed since the implementation environment is changing from S/W to H/W for implementation of specific application protocol. H/W implementation method starting with formal description procedure is essential to guarantree correctness and reliability of the implemented H/W by characteristic of formal description language. Inthis paper, for an automated H/W implementations, ESTELLE, a formal description method, is adopted. A transformation method from specification of ESTELLE to VHDL is suggested. This is an conceptual method that comparing and analyzing similarities between basic units of protocol description such as computation and communication unit and inter processors in H/W. Then we describe transformation model, and suggest example of transformation from ESTELLE to VHDL with Inres protocol.

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The Study on the Description of Feces Mentioned in "Dongyisusebowonsasangchobongwon", "Dongyisusebowongabobon", "Dongyisusebowonsinchukbon" ("동의수세보원사상초본권(東醫壽世保元四象草本卷)", "동의수세보원갑오본(東醫壽世保元甲午本)", "동의수세보원신축본(東醫壽世保元辛丑本)"에 기재된 대변(大便)에 대한 고찰)

  • Cho, Sung-Kyoo;Bae, Hyo-Sang
    • Journal of Sasang Constitutional Medicine
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    • v.19 no.3
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    • pp.10-19
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    • 2007
  • 1. Objectives The purpose of this study was to search the descriptions of feces in the text of Lee, Je-Ma for the physiological feces and pathological feces in constitutional medicine. 2. Methods We searched the descriptions of feces mentioned in the text of $\ulcorner$Dongyisusebowonsasangchobongwon$\lrcorner$, $\ulcorner$Dongyisusebowongabobon$\lrcorner$, and $\ulcorner$Dongyisusebowonsinchukbon$\lrcorner$ and classified the feces into physiological feces and pathological feces by the solidity, color, impurities of feces, and the frequency of defecation. 3. Results For Soyangin and Taeyangin, there are formal descriptions of feces related to the constipation in Dongyisusebowon sasang chobongwon, but for Soeumin and Taeumin, there is not formal description of feces related to the constipation in $\ulcorner$Dongyisusebowonsasangchobongwon$\lrcorner$ and for all 4 Type Constitution, there are various formal descriptions of feces related to the diarrhea in $\ulcorner$Dongyisusebowonsasangchobongwon$\lrcorner$. For all 4 Type Constitution, there are various formal descriptions of feces related to the constipation in $\ulcorner$Dongyisusebowongabobon$\lrcorner$, except Taeumin. and for all 4 Type Constitution, yhere are various formal descriptions of feces related to the diarrhea in $\ulcorner$Dongyisusebowongabobon$\lrcorner$. For Soeumin, especially there are the formal descriptions of color and impurities of feces. For all 4 Type Constitution, there are various formal descriptions of feces related to the constipation and the diarrhea in $\ulcorner$Dongyisusebowonsinchukbon$\lrcorner$. For Soeumin, especially there are formal descriptions of color and impurities of feces. 4. Conclusions The diarrhea in Soeumin is serious illness rather than the constipation, and the constipation in Soyangin is serious illness rather than diarrhea. Especially In Yin Exhausted Syndrome in Soyangin, the diarrhea is the important standard of diagnosis in Soyangin's constitutional symptom. The description of feces in Taeumin is not systematic, compared with Soeumin's and Soyangin's. The description of feces in Taeyangin is not yet scientifically established compared with Soeumin's, Soyangin's, Taeumin's.

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Description Techniques for Reusable Components and Interface using Formal Methods (정형기법에 의한 재사용 컴포넌트 및 인터페이스 명세 기술 연구)

  • 서동수
    • The KIPS Transactions:PartD
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    • v.8D no.1
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    • pp.62-70
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    • 2001
  • Correct descriptions for software component functions become a strong requirement in developing critical software especially on the area of real-time applications. In this paper, we introduce both formalization of software design using patterns and verification methods in order for the components to increase their understandability. In particular, the paper investigates into a means of formal description techniques based on VDM++ for the software components, and provides adequacy proof steps for a given functional descriptions.

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Analyzing RDF Data in Linked Open Data Cloud using Formal Concept Analysis

  • Hwang, Suk-Hyung;Cho, Dong-Heon
    • Journal of the Korea Society of Computer and Information
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    • v.22 no.6
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    • pp.57-68
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    • 2017
  • The Linked Open Data(LOD) cloud is quickly becoming one of the largest collections of interlinked datasets and the de facto standard for publishing, sharing and connecting pieces of data on the Web. Data publishers from diverse domains publish their data using Resource Description Framework(RDF) data model and provide SPARQL endpoints to enable querying their data, which enables creating a global, distributed and interconnected dataspace on the LOD cloud. Although it is possible to extract structured data as query results by using SPARQL, users have very poor in analysis and visualization of RDF data from SPARQL query results. Therefore, to tackle this issue, based on Formal Concept Analysis, we propose a novel approach for analyzing and visualizing useful information from the LOD cloud. The RDF data analysis and visualization technique proposed in this paper can be utilized in the field of semantic web data mining by extracting and analyzing the information and knowledge inherent in LOD and supporting classification and visualization.

A Comparative Study of Formal Methods for Safety Critical Software in Nuclear Power Plant

  • Sedo Sohn;Seong, Poong-Hyun
    • Nuclear Engineering and Technology
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    • v.32 no.6
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    • pp.537-548
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    • 2000
  • The requirement of ultra high reliability of the safety critical software can not be demonstrated by testing alone. The specification based on formal method is recommended for safety system software. But there exist various kinds of formal methods, and this variety of formal method is recognized as an obstacle to the wide use of formal method. In this paper six different formal method have been applied to the same part of the functional requirements that is calculation algorithm intensive. The specification results were compared against the criteria that is derived from the characteristics that good software requirements specifications should have and regulatory body recommends to have. The application experience shows that the critical characteristics should be defined first, then appropriate method has to be selected. In our case, the Software Cost Reduction method was recommended for internal condition or calculation algorithm checking, and statechart method is recommended for the external behavioral description.

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Formal Description and Reference Implementation Code Generation for a Security Algorithm using VDM-SL (VDM-SL을 이용한 보안 알고리즘의 형식적 표현과 참조구현 코드 생성)

  • Kim, Young-Gil;Kim, Ki-Su;Kim, Young-Wha;Ryou, Jae-Cheol;Jang, Chung-Ryong
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.6 no.4
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    • pp.67-84
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    • 1996
  • VDL-SL (Vienna Development Method-Specification Language) is one of the FSL(Formal Specification Language) which is being presented for the correct description of the security relevant standards. Several tools are being developed for the correctness and the convenience in the description and executable code generation of security relevant standards using VDM-SL. The IFAD VDM-SL Toolbox is one that has many functions : syntax checking, type checking, c++ code generation, test coverage information. This paper describes a formal method for description and implementation of MD4 algorithm using VDM-SL and IFAD VDM-SL Toolbox, and examines the result applied to secure hash algorithm, and proposes the relation to strict conformance test which recently suggested as a security test method.

Process of Thinking on the Form in Product Design (제품디자인의 형용사고과정)

  • 조종호
    • Archives of design research
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    • v.4 no.1
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    • pp.31-37
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    • 1991
  • Process of thinking on the form in product design includes the process in which unclear requirements are transformed into defined concepts, and the process in which the design as a form conforming to the concepts in conc1uded.(The former is called fconceptualizationJ which deals with abstract matters, and the latter "manipulation of the formJ which deals with more embodied matters) In conceptualization process the operation which transform the diverse requirements in the initial phase of de\ulcornersign to related linguistic expressions or to an image that directly suggests the form is executed. In the process of manipulation of the form the transformation to design as the description of relationships between the formal elements of the design solution resulted from the transformed requirements. It is the job of selecting the most suitable formal elements, balancing the relationships between them, out 01 the possibilities that reside in the individual attributes of formal elements, and finally leading to the design as the end solution. This writing focuses down to the wilfulness and ambiguity of design, and the diversity of design solution after the requirements, formal elements, and the process of relating the formal attributes to each other is built up the two phases.ases.

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System Modeling and Simulation Study for the Analysis of Flow Lines (Flow Line 분석을 위한 시스템 모델링 및 시뮬레이션 연구 - 타이어 공장의 사상라인을 중심으로 -)

  • Choi, Byung-Kyu;Park, Jeong-Hyeon;Hwang, Moon-Ho;Kim, Jae-Hie
    • IE interfaces
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    • v.4 no.1
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    • pp.71-81
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    • 1991
  • Presented in this paper is a systematic approach to "modeling and simulation' of flow lines in mass production systems, using a tire trimming line as an example. The "modeling phase" consists of 1) generation of alternative line configurations, 2) construction of a reference model for each alternative, and 3) formal description of the target system. ACD(Activity Cycle Diagrams) are employed as a tool for formal description. In the "simulation phase'. block diagram models (provided by the simulation language SIMAN) and the next event methodology(implemented in FORTRAN 77) are combined in order to fully describe the flow line behavior.

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ANALYTIC APPROACH TO DEFORMATION OF RESOLUTION OF NORMAL ISOLATED SINGULARITIES: FORMAL DEFORMATIONS

  • Miyajima, Kimio
    • Journal of the Korean Mathematical Society
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    • v.40 no.4
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    • pp.709-725
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    • 2003
  • We give an analytic approach to the versal deformation of a resolution of a germ of normal isolated singularities. In this paper, we treat only formal deformation theory and it is applied to complete the CR-description of the simultaneous resolution of a cone eve. a rational curve of degree n in P$^{n}$ (n $\leq$ 4).