• 한국정보과학회논문지:데이타베이스
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• 제34권2호
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• pp.153-165
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• 2007

XML은 웹 데이타 표현 및 교환을 위한 표준으로 많은 응용 분야에서 널리 이용되고 있다. XML Schema는 표준 XML 스키마로, 정의된 XML Schema에 의거하여 작성된 XML 문서를 ‘유효한 XML 문서’라고 하며 이러한 XML 문서는 갱신이 된 후에도 XML Schema에 대해 유효함이 보장되어야 한다. 본 논문은 갱신 이전에 갱신과 관련된 부분에 대한 유효 검증을 수행하여 불필요한 유효 검증을 제거한 XML Schema 유효 검증 메커니즘인 ‘예상 갱신 부분 유효 검증 기법’과 갱신 별 유효 검증 알고리즘을 제안한다. 또한 XML 데이타와 XML Schema 간의 매핑 방법과 XML Schema 유효 검증을 지원하기 위해 효율적인 스키마 정보 추출을 제공하는 XML Schema 저장 방법을 제안한다. 마지막으로 실험을 통해 스키마 저장 방법에 따른 갱신 별 유효 검증 성능을 비교한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 추계학술대회
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• pp.433-435
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• 2022

본 논문에서는 국가연구데이터커먼즈에서 연구데이터 분석·활용에 사용되는 컴퓨팅 리소스를 등록, 검색, 관리하기 위한 컴퓨팅 리소스 표준 메타데이터 스키마 설계 방안에 대해 소개한다. 국가연구데이터커먼즈는 연구데이터 공유·활용 극대화를 위한 연구데이터와 컴퓨팅 리소스 연합 활용 체계이다. 컴퓨팅 리소스는 연구 전 과정에서 사용하는 연구데이터를 분석·활용하는데 필요한 분석 인프라, 분석 소프트웨어 등 컴퓨팅 환경의 모든 리소스들을 말한다. KRDC 컴퓨팅 리소스 관리를 위한 표준 메타데이터 스키마는 컴퓨팅 리소스 관리를 위한 공통 필수 속성과 각 컴퓨팅 리소스 특징에 따른 속성을 고려하여 설계하였다. 컴퓨팅 리소스 관리를 위한 표준 메타데이터 스키마는 컴퓨팅 리소스 메타데이터 스키마와 컴퓨팅 리소스 제공자 메타데이터 스키마로 구성된다. 또한, 컴퓨팅 리소스와 제공자의 메타데이터 스키마는 성격에 따라 서비스 스키마와 시스템 스키마 그룹으로 구분하여 설계하였다. 표준 메타데이터 스키마는 KRDC 프레임워크를 통해 컴퓨팅 리소스 제공자와 컴퓨팅 리소스 사용자를 위한 컴퓨팅 리소스 등록, 카탈로그 검색, 컴퓨팅 리소스 관리, 워크플로우 서비스에 사용되며, 다양한 컴퓨팅 리소스 연계를 위해 확장 가능한 형태로 설계되었다.

• International Journal of Advanced Culture Technology
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• 제9권3호
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• pp.327-333
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• 2021

Inbody is a tool for measuring health information with high reliability and accuracy to analyze body composition. Unlike the existing method of storing/processing and outputting data on the server side, the health information generated by InBody requires accurate support for health sharing and data analysis services using mobile devices. However, in the process of transmitting body composition measurement information to a mobile service, a problem may occur in data transmission/reception processing. The reason for this is that, since the network network in the cloud environment is used, if the connection is cut off or the connection is changed, it is necessary to provide a global service, not a temporary area, focusing on the mobility of InBody information. In addition, since InBody information is transmitted to mobile devices, a standard schema should be defined in the mobile cloud environment to enable information transfer between standardized InBody data and mobile devices. We propose a mobile cloud system using EMRA(Extended Metadata Registry Access) in which a mobile device processes and transmits body data generated in the inbody and manages the data of each local organization with a standard schema. The proposed system processes the data generated in InBody and converts it into a standard schema using EMRA so that standardized data can be transmitted. In addition, even when the mobile device moves through the area, the coordinator subsystem is in charge of providing access services. In addition, EMRA is applied to the collision problem due to schema heterogeneity occurring in the process of accessing data generated in InBody.

• 한국CDE학회논문집
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• 제18권4호
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• pp.267-274
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• 2013

This study focuses on the data schema and data content, which includes maintenance data, data structures and illustration data relevant with the maintenance process of ship and offshore structures. Product lifecycle management (PLM) is expected to encompass all the product data generated for the operation and maintenance information as well as the design and production. This paper introduces a data exchange schema in PLM of ship and offshore, serving as the basis for the role of standards required by the middle-of-life PLM. Also this paper identifies a typology of standards relevant to PLM that addresses the schema of evolving standards and identifies a XML schema supporting the exchange of data related with maintenance operations. Technical document based on standards in accordance with S1000D and Shipdex is explained. A case study illustrating the use of standard data exchange and technical document is presented.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.408-411
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• 2017

이 논문은 스마트축사 환경에서의 센서 데이터를 GS1 표준 기반의 EPCIS 이벤트 스키마 설계를 통해 운용하는 방법을 다룬다. 스마트축사 환경에서 사용되는 센서들의 종류를 정의하고, 이러한 센서 정보를 운용하기 위한 GS1 표준 식별자, 표준 이벤트/마스터데이터 구조, 표준 인터페이스로 정보를 설명하며, 스마트축사의 다양한 센서 정보를 저장/공유하는 스키마의 구조를 정의한다.

• Journal of Computing Science and Engineering
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• 제4권4호
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• pp.313-349
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• 2010

In this paper, we study the data interoperability problem of web services in terms of XML schema compatibility. When Web Service A sends XML messages to Web Service B, A is interoperable with B if B can accept all messages from A. That is, the XML schema R for B to receive XML instances must be compatible with the XML schema S for A to send XML instances, Le., A is a subschema of B. We propose a formal model called Schema Automaton (SA) to model W3C XML Schema (XSD) and develop several algorithms to perform different XML schema computations. The computations include schema minimization, schema equivalence testing, subschema testing, and subschema extraction. We have conducted experiments on an e-commerce standard XSD called xCBL to demonstrate the practicality of our algorithms. One experiment has refuted the claim that the xCBL 3.5 XSD is backward compatible with the xCBL 3.0 XSD. Another experiment has shown that the xCBL XSDs can be effectively trimmed into small subschemas for specific applications, which has significantly reduced the schema processing time.

• 한국BIM학회 논문집
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• 제10권1호
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• pp.9-22
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• 2020

Recently, BIM has been extended to infrastructures such as roads and bridges, and the demand for BIM standard development for ports is increasing internationally. Due to the low level of utilization of classification system and drawing standards compared to other infrastructures, and the closed nature of national security facilities, ports have insufficient level of connection and sharing environment among external systems or users. In addition, since the standardization of data for port facilities is not made, it is still necessary to establish an independent DB for each system and to ensure interoperability of data between these systems since it does not have a shared environment among similar data. Therefore, the purpose of this study is to develop and verify IFC, the international standard for BIM, in order to cope with the BIM environment and to be commonly used in the design, construction, and maintenance of port facilities. To this end, we build a standard schema with port-specific Express Notation according to buildingSMART International's standard development methodology. First, domestic and international reference model standards were analyzed to derive components such as space and facilities of port facilities. Based on this, the components of the port facility were derived through the codification, categorization, and normalization process developed by the research team. This was extended based on the port BIM object classification system developed by the research team. Normalization results were verified by designers and associations. Then, IFC schema construction was based on Express-G data modeling based on IFC 4 * 2 Candidate, which is a bridge candidate standard based on IFC4 (ISO16739), and IFC 4 * 3 Draft, which is developed by buildingSMART International. The final schema was validated using the commercialized validation tool. In addition, in order to verify the structural verification of the port IFC schema, the transformation process was verified by converting the caisson model into a Part21 file. In the future, this result will not only be used as a delivery standard for port BIM products, but will also be applied as a linkage standard between systems and a common data format for port BIM platforms when BIM is used in the maintenance phase. In particular, it is expected to be used as a core standard for data exchange in the port maintenance stage.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2005년도 동계학술발표대회 논문집
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• pp.526-532
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• 2005

Representation of product data for exchanging and sharing a plant information was established the International Standard by ISO 10303 (STEP) and ISO 15926, but is not used widely in industrial circles by massiveness of standard and complexity of plant itself Specially, they are embodied to STEP data file(ISO 10303 Parts 21), but STEP file is uncomfortable that a person recognizes, and needs specification creation tool. In this paper, we made the integration schema for control valve through related standards, Also, we suggest the practical use framework for electronic commerce to utilize the XML schema that can represents integrate schema of control valve to use XML that is becoming the latest issue.

• Journal of Advanced Research in Ocean Engineering
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• 제4권3호
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• pp.96-104
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• 2018

The importance of data management for the efficient maintenance and operation of offshore structures is becoming increasingly important. This paper has discussed the data schema and business rules that standardize the data exchange between ship design, operation and maintenance. Technical documentation that meets the international standards of ShipDex and S1000D for exchanging the operation and management data in neutral or standard formats has been introduced into the life cycle management of ships. The schema of the data exchange is represented by XML (eXtensible Markup Language) and the lifecycle data is implemented by a structured document. Lifecycle data is represented as data modules defined by XML schema. Given the feasible data generation, an example of a technical document is introduced by a general XML authoring tool.

• 한국컴퓨터정보학회논문지
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• 제23권10호
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• pp.45-55
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• 2018

R2RML is a W3C standard language that defines how to expose the relational data as RDF triples. The output from an R2RML mapping is only an RDF dataset. By definition, the dataset has no schema. The lack of schema makes the dataset in linked data portal impractical for integrating and analyzing data. To address this issue, we propose an approach for generating automatically schemas for RDF graphs populated by R2RML mappings. More precisely, we represent the schema using ShEx, which is a language for validating and describing RDF. Our approach allows to generate ShEx schemas as well as RDF datasets from R2RML mappings. Our ShEx schema can provide benefits for both data providers and ordinary users. Data providers can verify and guarantee the structural integrity of the dataset against the schema. Users can write SPARQL queries efficiently by referring to the schema. In this paper, we describe data structures and algorithms of the system to derive ShEx documents from R2RML documents and presents a brief demonstration regarding its proper use.