• The KIPS Transactions:PartD
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• v.14D no.1 s.111
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• pp.97-106
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• 2007

In this paper, the business process was easily modeled by distinguishing between the business process and work logic. Based on this model, B2Bi collaboration Workflow modeling tool, which facilitates collaboration, was designed and implemented. The collaboration workflow modeling tool consists of 3 components; business process modeling tool, execution engine and monitoring tool. First, a business process modeling tool is used to build a process map that reflects the business logic of an application in a quick and accurate manner. Second an execution engine provides a real-time execution environment for business process instance. Third, a monitoring tool provides a real-time monitoring function for the business process that is in operation at the time. In addition to this, it supports flexibility and expandability based on XML and J2EE for the linkage with the legacy system that was used previously, and suggests a solution for a new corporate strategy and operation.

• Journal of Korea Multimedia Society
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• v.8 no.4
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• pp.575-585
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• 2005

Research and development projects, in the past decade, has shown that object-oriented(OO) technology could importantly contribute in productivity and reusability improvement. There are various research areas related to OO technology. Two of major research fields in this areas are concerned in issues for CASE tools and component-based technologies. This paper discusses an example of applying component-based technology to a CASE tool. This paper proposes the research experience gained while we have incrementally developing OODesigner, an OO CASE tool, with compound document support functionality based on COM/OLE technology. As OODesigner with OLE container functionality has interoperability with other application programs of Windows system which can be run as a OLE server, it can provide more powerful documentation environment than other CASE tools. OODesigner can be used not only to design UML diagrams, but also to make documentation cooperatively with various kinds of OLE- enabled software like Recoder and Excel. Therefore we can conduct powerful and consistent documentation with the tool.

• Journal of Digital Contents Society
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• v.4 no.1
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• pp.45-55
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• 2003

Due to the rapid development of information & communication technology under high performance computing environments, the multimedia production techniques have been applied to a variety of multimedia fields such as general banner advertisements including texts, images and animations, and the internet-broadcasting dealing with videos and sounds. This paper presents an authoring tool with main functions to setup events objects (image, animation, sound, button, area) and to setup action functions, so that non-experts can easily produce multimedia including images, sounds, animations and so on. The authoring tool implemented in Java can be applied to the CD-ROM title production as well as the web-site construction. We can expect that when this authoring tool is used for in multimedia production, both cost and time will be reduced due to its convenience and powerful functions. We have a future plan to integrate intelligent multimedia presentation techniques with the presented tool for the autonomous multimedia authoring works.

• KIPS Transactions on Software and Data Engineering
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• v.5 no.9
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• pp.425-432
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• 2016

As the importance of information audit is getting bigger, the public corporations invest many expenses at information system audit to build a high quality system. For this purpose, there are much research to proceed an audit effectively. In database audit works, it could audit utilizing a variety of monitoring tools. However, when auditing SQLs which might be affected to database performance, there are several limits related to SQL audit functionality. For this reason, most existing monitoring tools process based on meta information, it is difficult to proceed SQL audit works if there is no meta data or inaccuracy. Also, it can't detect problems by analysis of SQL's syntax structure. In this paper, we design and implement the SQL Inspector using ANTLR which is applied by syntax analysis technique. The overall conclusion is that the implemented SQL Inspector can work effectively much more than eye-checked way. Finally, The SQL inspector which we proposed can apply much more audit rules by compared with other monitoring tools. We expect the higher stability of information system to apply SQL Inspector from development phase to the operation phase.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10c
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• pp.31-33
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• 2001

전통적으로 스캔 설계 법칙 검사는 게이트 레벨에서 수행되었다. 그러나 RTL 설계와 합성 도구의 사용이 일반화되면서 게이트 레벨 회로의 검사는 합성 단계에서의 최적화와 스캔 설계 법칙 위배를 정정한 후의 최적화가 필요하여 많은 시간이 소요된다. RTL에서의 스캔 설계 법칙 검사는 이러한 문제를 해결할 수 있으며, 이것이 본 논문의 주제이다. 본 논문에서는 스캔 설계 법칙의 위배를 RTL 설계에서 검사할 수 있는 기법을 제안한다. 이 기법은 효과적인 설계 과정에 의해 설계 시간 을 단축할 수 있을 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.04a
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• pp.835-841
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• 2000

호스트와 타겟 간의 통신 부담과 타겟 자원이 제한적이라는 문제를 해결하기 위해서, 호스트 중심 원격 개발 환경(Remote Development Environment: RDE)을 구성하였다. 이 원격 개발 환경은 여러 개발 도구로 구성되어 있는데, 이들 도구가 타겟시스템에 접속하여 내장형 응용를 개발하는데 있어서 공통 기능, 공통 데이터가 존재한다. 그런데 이들을 각각 유지시키는 것은 타겟시스템에 부담을 줄 뿐만 아니라, 개발 도구를 추가/구현하는 것도 매우 어렵게 한다. 이 문제를 해결하기 위해 원격 개발 도구들의 공통 요소들을 모아 도구와 타겟시스템 사이에 중개자 역할을 하는 타겟관리자를 둔다. 타겟관리자는 미들웨어로서 호스트와 타겟 간의 통신 채널을 하나로 유지하면서 도구와 타겟 간의 통신을 중재하고, 도구들이 심볼 테이블을 공유할 수 있도록 심볼 테이블을 관리한다. 또한, 타겟에 있는 도구 전용 메모리를 관리하며, 호스트 상에서 개발한 내장형 소프트웨어를 타겟에 로딩하는 일을 처리한다. 이러한 타겟관리자를 사용하는 원격 개발 환경은 도구들에게 공통 인터페이스를 제공하여, 통신 방식 등의 하부 구조에 상관없이 서비스를 받을 수 있고, 새로운 도구를 추가하는 것도 용이하게 할 수 있다는 장점을 갖게 된다. 본 논문에서는 ETRI 에서 개발 중인 실시간 운영 체제인 Q+용 타겟관리자를 설계하고 구현한다. 또한, 타겟관리자가 동작하게 될 내장형 실시간 응용 개발 환경에 대하여 소개하고, 구현 결과를 도구들과 연계하여 보여주며, 타겟 관리자를 둔 원격 개발 환경이 타겟 관리자를 두지 않은 경우에 비해 호스트와 타겟 간의 통신 횟수가 얼마나 감소하는지 시험 결과를 통해 보여준다. 현재 타겟 관리자의 프로토타입을 개발하여 도구들과 통합 시험을 하였는데 기본 기능들이 성공적으로 수행됨을 확인하였다.

• Journal of Digital Convergence
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• v.19 no.6
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• pp.61-71
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• 2021

In a situation where the online learning is expanding due to COVID-19, the current maker education has limitations in applying it to classes. This study is to design the class of online maker education using artificial intelligence tools in elementary school. Also, it is to identify the responses to it and to confirm whether it helps improve the learner's computational thinking and creative problem solving ability. The class was designed by the literature review and redesign of the curriculum. Using interveiw, the responses of instructor and learners were identified. Pre- and post-test using corresponding sample t-test was conducted. As a result, the class consisted of ten steps including empathizing, defining making problems, identifying the characteristics of material and tool, designing algorithms and coding using remixes, etc. For computing thinking and creative problem solving ability, statistically significant difference was found. This study has the significance that practical maker activities using educational artificial intelligence tools in the context of elementary education can be practically applied even in the online environment.

• Journal of The Korean Association For Science Education
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• v.43 no.6
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• pp.563-572
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• 2023

This study aimed to analyze cases of online class design by pre-service science teachers to identify the teaching strategies employed for online classes. For this purpose, the real-time online class lesson plans of 12 pre-service science teachers, who had experienced education utilizing online teaching tools for a semester, were collected and analyzed. The pre-service science teachers considered all the elements that were essential in traditional face-to-face class designs, including prerequisites, statements of learning objectives, stimulating motivation, teaching and learning methods, wrapping up, teacher-student interaction, and assessment. They devised teaching strategies that could overcome the limitations of online teaching and were not feasible in face-to-face classes for each element. Additionally, they were considering new instructional strategies tailored to the online teaching environment, such as creating a conducive environment for using online teaching tools and strategies related to checking the online teaching environment. However, for statements of learning objectives, stimulating motivation, and wrapping up, most of the pre-service science teachers predominantly utilized teaching strategies from traditional face-to-face classes, especially those involving the presentation of visual materials through online tools. Student-centered approaches were rarely implemented in stimulating motivation or wrapping up. These findings imply that one semester of exposure to the utilization of online teaching tools may be insufficient in teacher education. Thus, there is a need for a continuous and expanded educational program on the utilization of online teaching tools as part of pre-service teacher education.

• The KIPS Transactions:PartC
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• v.11C no.5
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• pp.569-576
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• 2004

Conventional researches of standard tool validating public key cryptographic algorithm have been studied for the internet environment, not for the mobile internet. It is important to develop the validation tool for establishment of interoperability and convenience of users in mobile internet. Therefore, this paper presents the validation tool of Elliptic Curie Cryptography algorithm that can test if following X9.62 technology standard specification. The validation tool can be applied all information securities using ECDSA, ECKCDSA, ECDH, etc. Moreover, we can en-hace the precision of validation through several experiments and perform the validation tool in the online environment.

• Proceedings of the Korea Association of Information Systems Conference
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• 1997.10a
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• pp.427-436
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• 1997

데이터베이스 설계에서 개념적 모델링 단계에서는 논리적 설계가 효율적으로 수행 되도록 하기 위하여 현실 세계를 보다 정확하게 표현할 수 있도록 다양한 의미 표현 도구를 제공해야 한다. 본 연구에서는 데이터베이스 개념 설계에 가장 널리 사용되는 실체 관계 모 델(ERD)을 기반으로 데이터의 표현 능력을 향상시키고자 한다. 특히 데이터의 표현을 확장 하려는 연구들을 정리하고 통합적인 데이터 모델링 방법의 개발 필요성을 제시한다.