• 한국생활과학회지
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• 제7권1호
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• pp.25-38
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• 1998

The purpose of this study was to examine developmental trends in script-based organization strategy and relative influences of age, use of organizational strategy and category typicality of lists on children's recall. The subjects were 120 infant children, -40 four years old, 40 five years old, 40 six years old. All subjects were received 1 of 2 slot-filler lists of items differing in category representativness. Data were analysed by two-way Anova, Duncan's post-hoc test and Multiple Regression analysis. The major findings were as follows. 1. Recall and use of organizational strategy were increased with age. 2. At each age level, children showed high level of recall and organization strategy for category typical than category atypical. 3. Children's age, use of organizational strategy and category typicality of list significantly predicted children's recall. 42% of the variance of children's recall was explained by three variables. The relative influence of age to the prediction of children's recall was the strongest.

• Journal of Platform Technology
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• 제8권4호
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• pp.47-58
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• 2020

DO-330 소프트웨어 도구 자격증명 고려사항은 항공기에 탑재되는 소프트웨어 및 하드웨어를 개발/검증 하기 위해 사용되는 도구 개발 프로세스에 적용하기 위한 지침이다. 이 지침 상의 도구 개발 프로세스 중 검증 프로세스는 DO-330을 준수하기 위해 달성해야 하는 목표 중 많은 비중을 차지하고 있어 상당히 중요하다. 특히, 도구의 안전성 수준이 높은 개발 도구의 시험 목표들은 독립적으로 수행되어야 하기 때문에 많은 시간, 비용, 그리고 인력이 투입되어야 한다. 시험 절차를 잘 수립 해 놓았을 지라도 시험의 복잡도가 높아지면 인적 오류가 발생할 확률이 높아진다. 본 논문에서는 한화시스템에서 개발한 A661UAGEN 도구의 효율적인 DO-330 검증 프로세스를 진행하기 위한 스크립트 기반의 시험 자동화 에이전트 소프트웨어 구조를 제시하고 평가하였다. 그 결과 스크립트 기반의 시험 자동화 에이전트를 통해 자동화 된 시험이 테스트 엔지니어에 의한 수동 시험 보다 시험 수행 시간은 87.5%가 감소되었고, 시험 생산성은 43.75%가 향상되었음을 확인하였다.

• Spatial Information Research
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• 제20권2호
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• pp.35-44
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• 2012

최근 국내외에서는 민간기업 뿐만 아니라 관공서에서도 웹 지도 서비스가 활발하게 이루어지고 있는 상황이다. 플랫폼으로써 데스크 탑에서부터 스마트 폰까지 다양하며, 이에 사용되는 기술도 계속 발전하고 있는 추세이다. 또한 사용자들에게 현재 서비스 중인 공간정보를 사용하여서 매쉬업 할 수 있도록 다양한 API를 제공하고 있다. 본 논문에서는 웹 지도 서비스에서 최근 유행하고 있는 RIA기술을 적용하여 각 언어별로 지도 서비스에서 가장 많이 사용하는 기능을 구현하였다. 각 웹 브라우저별로 사용자가 느끼는 속도에 대해서 실험 및 분석을 실시하였으며, 분석결과 JavaScript, Silverlight, Flex로 구현된 기능마다의 특징이 발견되었다. 실제 지도 서비스중인 서울시GIS포털시스템의 생활지도에서 직접 테스트하였다. 종합적인 결과 본 연구의 환경에서는 Silverlight의 성능이 다소 우수한 것으로 나왔다.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제5권12호
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• pp.641-652
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• 2016

본 논문은 임베디드 시스템 테스트를 위해 산업현장에서 많이 사용하는 체크리스트를 기반으로 테스트 스크립트를 자동으로 생성하기 위한 방법을 제안한다. 제안하는 방법은 수동 생성에서 발생할 수 있는 오류를 줄일 수 있을 뿐만 아니라, 기존의 체크리스트로는 테스트하지 못하는 다양한 모드 조합을 테스트하기 위한 테스트 스크립트도 생성할 수 있다. 체크리스트에 있는 테스트 명령어는 테스트 명령어 사전에 정의된 신호 값을 참조하여 테스트 스크립트로 변환된다. 또한, 체크리스트를 정의된 일련의 연관된 동작의 집합인 모드들 간의 동작을 확인할 수 있게 하는 순차적, Double permutation 및 무작위 방법으로 테스트 스크립트를 생성할 수 있는 방법을 제안한다. 제안된 방법은 구현되었고, 실험을 통해 그 가능성을 보여준다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2000년도 추계학술대회
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• pp.31-35
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• 2000

We investigate the groundwater distribution and chemical characteristics for 3 or 5 districts every year and make the hydrogeologic map on a scale of 1:50,000. We draw the hydrogeologic digital map based on "The Handbook for the Drawing and Management of Hydrogeologic Map" which was published by MOCT and KOWACO in 1998. But, the Stiff diagram and well's notation are difficult to be presented in the digital map using the commercial Arcview GIS tools. So we develop the script file with Avenue language to represent them in Arcview GIS tool. At first, we design the database for the chemical analysis result of groundwater and well identification, and make the program code with Avenue language to display them on the digital map. And next we test the usefulness of the program code. As a result, we find that the script file is very useful for drawing the symbols and diagrams in hydrogeologic digital map using ArcView GIS.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권7호
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• pp.2434-2454
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• 2021

This paper developed the software testing factory-cloud testing platform (STF-CTP) to address the software compatible issues in various smart devices. Software developers who only require uploading the application under test (AUT) and test script can test plenty of smart devices in STF-CTP. The challenge for the cloud test platform is how to optimize the resource and increase the performance in the limited resource. This paper proposed a new scheduling mechanism and a new process of the system operation which is based on the OpenStack platform. We decrease about 40% memory usage of OpenStack server, increase 3% to 10% Android device usage of STF-CTP, enhance about 80% test job throughput and reduces about 40% test job average waiting time.

• International Journal of Quality Innovation
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• 제1권1호
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• pp.64-74
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• 2000

This paper investigates the issue of performance testing on web browsing environments. Among the typical non-functional characteristics, index of link validity will be deeply explored. A framework to certify link correctness in web site is proposed. All possible navigation paths are first formulated to represent a usage model with the Markov chain property, which is then used to generate test script file statistically. With collecting any existing failure information followed by tracing these testing browsed paths, certification analysis may be performed by applying Markov chain theory. The certification result will yield some significant information such as: test coverage, reliability measure, confidence interval, etc. The proposed mechanism may provide not only completed but also systemic methodologies to find any linking errors and other web technologies errors. Besides, an actual practice of the proposed approach to a web-based system will be demonstrated quantitatively through a certification tool.

• 동력기계공학회지
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• 제14권1호
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• pp.40-46
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• 2010

This paper shows the development process for measuring three-dimensional flow velocity components in a web-browser. The system is developed in an embeddable C/C++ interpreter Ch and Ch-CGI toolkit. The interface for the web-based measurement system consists of a set of web HTML files and Ch files for CGI. All of data in web browser are passed to Ch-CGI script to generate the output of new HTML file. PC-Server and PC-Client can submit measurement parameters and receive the text/graphical results each other. PC-Client can control the test equipment by using a parameters that received from PC-Server. It also can pass the test results between the web-based measurement system. In summary, the designed measurement system is evaluated, the outputs shown well on the web browser.

• 지능정보연구
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• 제5권1호
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• pp.13-34
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• 1999

Building a knowledge base effectively has been an important research area in the expert systems field. A variety of approaches have been studied including rules, semantic networks, and frames to represent the knowledge base for expert systems. As the size and complexity of the knowledge base get larger and more complicated, the integration of knowledge based with database technology cecomes more important to process the large amount of data. However, relational database management systems show many limitations in handing the complicated human knowledge due to its simple two dimensional table structure. In this paper, we propose Object-Oriented Knowledge Store (OOKS), a knowledge base model on the basis of a frame sturcture using an object-oriented database. In the proposed model, managing rules for inferencing and facts about objects in one uniform structure, knowledge and data can be tightly coupled and the performance of reasoning can be improved. For building a knowledge base, a knowledge script file representing rules and facts is used and the script file is transferred into a frame structure in database systems. Specifically, designing a frame structure in the database model as it is, it can facilitate management and utilization of knowledge in expert systems. To test the appropriateness of the proposed knowledge base model, a prototype system has been developed using a commercial ODBMS called ObjectStore and C++ programming language.

• The Journal of Asian Finance, Economics and Business
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• 제7권8호
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• pp.33-40
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• 2020

The main aim of the study is to test a house pricing model by combining hedonic and asset-based pricing models. An understanding of the relationship between house pricing and its return (the rental income) helps to establish houses as a significant asset class. The model tested the relationship between house pricing (dependent variable) and the house attributes (independent variables) derived from Freeman's framework of housing attributes. This study uses a large data-set of 1,899 sample of new, high-end houses purchased between 2016 and 2019 collected from the national capital region of India (Delhi-NCR). The algorithm was built in R-Script, and stepwise multiple linear regression was used to analyze the model. The analysis of the model proves that the three significant variables, namely, carpet area, pay-off, and annual maintenance charges explain the price function. Further, the model is statistically fit. The major contribution of the study is to understand the key factors and their influence on the house pricing. The model will be helpful in risk assessment in the housing investment and enhance the chances of investment. Policy-makers can use information about the underlying valuation drivers of the house prices to stabilize the market and also in framing the tax policies.