• Journal of the Institute of Electronics Engineers of Korea SD
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• v.44 no.4
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• pp.73-79
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• 2007

In this paper the proposed transactor is customized and a generator which roles of automatically generating the transactor according to DUT(Design Under Test)'s input and output is implemented. The customized transactor is designed by rearranging the signals of depending on DUT and transactor protocol which consists of signals of the PCI interface between host computer and FPGA(Field Programmable Gate Array). The implemented automatic generator of transactor generates a Verilog code of transactor by adding DUT's information about input and output ports. Performance and normal working of the generated transactor has been verified by experiments with some verified hardware IPs. Also, an efficiency of the transactor has been verified by comparing with user's manually designed transactor and generated transactor. Moreover, the generator's flexibility has been verified for DUT's information of variable input and output. In case of using the implemented generator, a design time of transactor is reduced.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06c
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• pp.203-207
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• 2008

본 논문에서는 의료기관의 검사코드인 LOCAL 코드(Local Code)를 LOINC 코드(Local Laboratory Result Code)와 매핑하기 위한 알고리즘을 구현하고, 이를 기반으로, LOCAL 코드의 매핑 및 입력을 지원하는 새로운 시스템을 제안한다. 이를 위해, 먼저, LOCAL 코드를 변환하여 LOINC의 여섯 가지 속성을 추출한 대응 코드로 생성한다. 추출한 대응코드는 LOINC 코드와 매핑하는 키 값이 된다. 대응코드와 LOINC 코드의 매핑은 각 속성을 우선순위에 따라 비교하는 과정을 포함하며, 매핑 결과 수에 따라 자동 매핑되거나, 상 하위 개념을 조합 또는 System 코드를 재검색하는 결과 최소화 단계를 수행한다. 본 연구에서는 매핑 알고리즘을 기반으로 LOINC 코드로 매핑 하고, 새로운 LOCAL 코드를 LOINC 코드로 입력할 수 있는 새로운 시스템을 구축하였다. 본 연구의 목표는 LOINC를 활용하여 방대한 진단검사 결과데이터를 표준화하고, 이를 통해 의료 기관 간 EMR을 실현하고 구축하는 기반요소를 마련하는데 있다. 본 연구를 통해, 국내 의료기관 간 검사 결과의 통합과 호환이 가능하게 할 것이며, 검사코드의 표준화를 위한 기반요소를 마련할 수 있을 것으로 기대한다.

• Journal of KIISE:Software and Applications
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• v.34 no.7
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• pp.635-645
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• 2007

Component technology has been widely accepted as an effective way for building software systems with reusable components, and Microsoft (MS) .NET is one of the recent representative component technologies. Model Driven Architecture (MDA) is a new development paradigm which generates software by transforming design models automatically and incrementally. Transformation of structural models in MDA has been successfully applied. However, transformation of dynamic models and pervasive services, such as transaction service, security service, synchronization service and object pooling are largely remains as an area for further research. The recent enterprise system has multi tier distributed architecture, and the functionality of early mentioned pervasive services is essential for this architecture. .NET platform can implement Component Object Model+ (COM+) component for supporting pervasive services by specify Attribute code. In this paper, we specify the functionalities of the COM+ component offering pervasive services, and then those functionalities are defined by UML profile. By using the profile, the Platform Specific Model (PSM) for .NET/C# is specified, and .NET components are automatically generated through our tool. The development productivity, extensibility, portability, and maintenance of software can be dramatically improved by using of the proposed methods.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10c
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• pp.616-618
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• 2002

최근 몇 년 동안 이루어진 네트웍 및 인터넷 시장의 발전과 더불어 빈번히 발생하는 시스템에 대한 침입으로 이를 방어하기 위한 여러 도구들이 개발되어왔다. 이러한 도구들 중 침입탐지시스템은 시스템 방어에 핵심적인 역할을 하는데, 현재까지 이를 평가하기 위한 자동화된 온라인 평가도구는 없는 실정이다. 보안관련 시장이 발달한 미국에서는 DARPA의 지원아래 관련된 연구가 진행되어 1998년부터 2000년까지 대규모의 침입탐지시스템 평가가 이루어졌으나, 이때의 평가들은 당시의 침입 수준만을 고려한 것으로 새로운 침입 환경에 대한 확장은 용이하지 않기 때문에, 급속도로 증가하는 침입 기술에 대응하기 위한 새로운 방법이 필요하다. 본 논문에서는 기존 침입코드를 이용하여 새로운 침입을 만들어 내어 침입탐지 평가도구에 적용할 수 있는 모듈 위치변환과 더미코드 삽입을 제안한다. 모듈 위치변환은 알려진 u2r코드를 모듈 단위로 나누고 나뉘어진 모듈의 위치 변환을 통해 새로운 침입을 만들어낸다. 또한 더미코드 삽입은 침입코드의 모듈 사이에 침입과 관련 없이 수행되는 정상 모듈을 삽입하여 새로운 침입을 만든다. 모듈 위치변환을 통해 평균 6.1%의 침입 변환율과 더미코드 삽입을 통해 새로운 침입을 만들었다.

• Journal of Internet Computing and Services
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• v.20 no.2
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• pp.9-19
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• 2019

Service and users over the Internet are increasing rapidly. Cyber attacks are also increasing. As a result, information leakage and financial damage are occurring. Government, public agencies, and companies are using security systems that use signature-based detection rules to respond to known malicious codes. However, it takes a long time to generate and validate signature-based detection rules. In this paper, we propose and develop signature based detection rule generation and verification systems using the signature extraction scheme developed based on the LDA(latent Dirichlet allocation) algorithm and the traffic analysis technique. Experimental results show that detection rules are generated and verified much more quickly than before.

• Journal of Korea Multimedia Society
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• v.6 no.6
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• pp.1088-1099
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• 2003

The syntax-directed translation using semantic actions is frequently used in construction of compiler for text programming languages. it is very useful for the language designers to develop compiler back-end using a syntax structure of a source programming language. Due to the lack of the integrated representation method for a parse tree node and modeling method of syntax structures, it is very hard to construct compiler using syntax-directed translation in visual languages. In this Paper, we propose a visual language compiler generation method for constructing a visual languages compiler automatically, using syntax-directed translation. Our method uses the Picture Layout Grammar as a underlying grammar formalism. This grammar allows our approach to generate parser efficiently u sing And-Or-Waiting Graph and encapsulating syntax definition as one unit. Unlike other systems, we suggest separating the specification and the generation of semantic actions. Because of this, it provides a very efficient method for modification.

• Journal of KIISE:Computing Practices and Letters
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• v.9 no.2
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• pp.133-145
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• 2003

Web applications based on J2EE($Java^{TM}$ 2 Platform, Enterprise Edition) were occurred for solution to overcome the limitations in time and space that the former applications had. Recently, lots of solutions using frameworks are being suggested to develope applications more quickly and efficiently. In this paper, we propose the template for several processes and types, which should be taken in presentation layer of web applications. This idea was based on the fact that web applications developers can concentrate on their specific tasks with independent manner in layered architecture. This template is XML-typed document that shows information about presentation layer of Web applications, which the user wants to compose. This template is inputted to the code generator. After then, the code generator generates skeleton code in presentation layer automatically after parsing information of XML documents. It means that we can develope Web applications more efficiently, by constructing skeleton code which inherits from hot spot classes of framework. Using this template and code generator, developer can develop Web applications with little practice and also is easy to cooperate with other developers to develop them just in time with distributing the standard development process.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.639-642
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• 2005

XForms는 XML데이터를 사용하고 내용과 표현을 분리시킨 형태의 Form으로 기존의 HTML이 가지는 특징 외에 쉬운 데이터 처리, 모듈의 재사용성, 다른 장비로의 이식성, 데이터 접근성 등 몇 가지 추가적인 특징을 가진다. 본 논문에서는 XML 데이터의 구조를 나타내는 DTD(Document Type Definition)를 입력받아 XForms를 자동으로 생성해 주는 XForms-Generator의 설계와 구현을 소개한다. 이 시스템은 DTD정보를 분석하여 반복부를 추출하고, 반복부의 처리를 중심으로 XForms코드를 생성한다. 생성된 XForms의 실행 환경은 Orbeon사의 Presentation Server를 이용한다. 개발된 시스템은 XML 데이터를 이용하는 온라인 Form을 개발할 때 시간 및 비용을 줄이는데 도움을 줄 수 있을 것으로 기대된다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.93-96
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• 2017

DDS (Data Distribution Serivce) communication middleware is spreading to various private sector as well as the defense sector because it can obtain a very high application effect in a complex system environment in which a plurality of data producers and data consumers are connected by a network. However, application development using DDS middleware is an inefficient structure with a lot of repetitive codes because most users perform 1: 1 mapping with the message they want to exchange. Accordingly, the user has to perform unnecessary repetitive tasks as the topic increases. Therefore, a development support tool that identifies a series of processes required for using DDS middleware and automatically generates the classes that are repeated by Topic is required. In this paper, we propose a method for DDS communication by automatically generating a common class for efficient use of DDS middleware.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.25 no.6A
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• pp.848-854
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• 2000

Network management in TMN concerns to the operating system and communication equipments in network, and defines them as objects. GDMO(guidelines for the Definition of Managed Objects) is used to describe those objects. GDMO is not directly used for managing the network, but translated into a language with object-oriented paradigm. And GDMO refers to ASN.1(Abstract Syntax Notation One) for manage objects. This paper presents design and implementation techniques for the translator which automatically translates the specification of ASN.1 and GDMO to the object-oriented language for generating MIB(Managed object Instance Base). This system, unlike the existing source code generator, is designed to generate various object-oriented languages automatically, which are used to generate Managed object Instance Base(MIB). And the system includes various graphic user interface to enhance the development environment of ASn.1 and GDMO