• Title/Summary/Keyword: Test Case Evaluation

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Effective Test Case Generation for Various Types of Web-based Software (다양한 웹 기반 소프트웨어의 테스트를 위한 효율적인 테스트 케이스의 생성)

  • Kim, Hyun-Soo;Choi, Eun-Man
    • The KIPS Transactions:PartD
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    • v.12D no.4 s.100
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    • pp.569-582
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    • 2005
  • As information and business communication via Internet are growing up, web-based software is wide spread and more important on the viewpoint of software qualify than stand-alone. Research on verification of web content links and web-based Program was tried, but has short on covering various types of web based software and making experiments to be applied in real testing practice. This paper suggests a modeling technique to be applied to dynamic and various types of web-based software. First, it identifies each elements consisting of web-based software and then construct a model of Object Control Flow Graph and Object Relationship Diagram. We can generate test cases covering all test paths of ORD or invoking key points test route. Suggested modeling method and test case selection technique are verified by applying five types of web-based software and compared with other web-based test techniques.

Investigation of Standard Evaluation for the Quality Control of General X-ray Systems

  • Kang, Byung-Sam;Son, Jin-Hyun;Kim, Byoung-Jun;Park, Deok-Woo;Jung, Byoung-Hoon;Lee, Hyo-Jin;Hong, Ji-Young;Kim, Seung-Chul
    • Korean Journal of Digital Imaging in Medicine
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    • v.12 no.2
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    • pp.71-79
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    • 2010
  • Thanks to the great development of technology in radiation, we are now able to reduce radiation exposure to the patients, and the radiographer and expenses in medical sector. We are also trying to produce ideal images which maintain useful information. These kinds of effort are increasing over the world. For that reason, we should get images which include necessary data of patients. Then it also can help to reduce radiation exposure to the patients. Therefore, we need to know the problems that cause a falling off in image's quality and check on generator in case of their electronic and mechanical errors. And moreover, we should anticipate the possibility of devices errors and prevent them with regular quality control. This investigation was conducted in medical institutions, institute of educations and hospitals. They are all in Seongnam-City. We used PMX-III, kVp meter to implement kVp test, mR / mAs output test, light fiel / beam alignment test, Reproducibility of exposure dose, half value layer test, reproducibility of exposure time test. in the case of hospitals, they perceive the importance of regular quality control and organize the regular quality control team so they can be satisfied with the error standard in most experiments. On the other hand, when it comes to medical institutions and institute of educations, they perceive the importance of regular quality control less than hospitals do. Radiographer need to understand the importance of regular quality control and practice it so they can get the fine ideal image with the lower dose to the patient.

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The Quantitative Analysis of Alternative-Decision in Missile Test: Focusing on Selecting a Foreign Test Site through Data Envelopment Analysis (미사일 시험을 위한 대안결정의 정량적 분석: 자료포락분석을 이용한 국외 시험장 선정을 중심으로)

  • Han, Seung Jo
    • Convergence Security Journal
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    • v.20 no.4
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    • pp.3-12
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    • 2020
  • Although the related regulations or guidelines are not specified in the defense weapon system R&D process, R&D authorities frequently encounter problems that require rational decision-making. If the rational process is not applied in the matter of alternative choice, the project could be disrupted, which can result in longer project periods or more resource provision. In particular, a variety of decision-making methods are needed for test&evaluation of missile R&D. The issue of selecting a test site is one of the representative decision-making problems. If it is needed to determine the priority of multiple sites, Delphi Method and Analytic Hierarchy Process(AHP) will be applied. However, if the input of cost is to be considered, Data Envelopment Analysis(DEA) is more valuable to solve the problem. This paper proposes a solution to handle quantitatively various decision-making problems that can occur in missile flight test, and shows how DEA is applied through a simulated case study of selecting a foreign test site.

Test Case Generation for Simulink/Stateflow Model Based on a Modified Rapidly Exploring Random Tree Algorithm (변형된 RRT 알고리즘 기반 Simulink/Stateflow 모델 테스트 케이스 생성)

  • Park, Han Gon;Chung, Ki Hyun;Choi, Kyung Hee
    • KIPS Transactions on Software and Data Engineering
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    • v.5 no.12
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    • pp.653-662
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    • 2016
  • This paper describes a test case generation algorithm for Simulink/Stateflow models based on the Rapidly exploring Random Tree (RRT) algorithm that has been successfully applied to path finding. An important factor influencing the performance of the RRT algorithm is the metric used for calculating the distance between the nodes in the RRT space. Since a test case for a Simulink/Stateflow (SL/SF) model is an input sequence to check a specific condition (called a test target in this paper) at a specific status of the model, it is necessary to drive the model to the status before checking the condition. A status maps to a node of the RRT. It is usually necessary to check various conditions at a specific status. For example, when the specific status represents an SL/SF model state from which multiple transitions are made, we must check multiple conditions to measure the transition coverage. We propose a unique distance calculation metric, based on the observation that the test targets are gathered around some specific status such as an SL/SF state, named key nodes in this paper. The proposed metric increases the probability that an RRT is extended from key nodes by imposing penalties to non-key nodes. A test case generation algorithm utilizing the proposed metric is proposed. Three models of Electrical Control Units (ECUs) embedded in a commercial vehicle are used for the performance evaluation. The performances are evaluated in terms of penalties and compared with those of the algorithm using a typical RRT algorithm.

A Study on Test Method for Performance Evaluation of Rockfall Protection Fence (Post) (낙석방지울타리(지주) 성능평가를 위한 시험방법 연구)

  • Jin, Hyunwoo;Hwang, Youngcheol
    • Journal of the Korean GEO-environmental Society
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    • v.23 no.2
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    • pp.5-12
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    • 2022
  • In this study, a field test was conducted to present a test method for performance evaluation of a rock fall prevention fence, centering on the vertical drop test among the existing test methods of the rock fall prevention fence. A test to determine the support capacity of a rockfall prevention fence in Korea is usually conducted using a combination of wire mesh, poles, and wire rope, and the location of the impact of falling rocks has been conducted centered on the center of the wire mesh. However, in the case of domestic papers and test data, there is no data on direct hit of post. Therefore, the amount of displacement and weak section were analyzed when the impact on 100kJ class rock energy was hit on the post, centering on the Rockfall Protection fence (highway type No. 2).

A Case of Clozapine-Induced Myocarditis (Clozapine에 의한 심근염 1예)

  • Jo, Woo-Dong;Choi, Byoung-Joo;Noh, Jai-Sung
    • Korean Journal of Biological Psychiatry
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    • v.19 no.3
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    • pp.146-151
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    • 2012
  • Clozapine is an atypical antipsychotic agent that is more effective than the typical neuroleptics in the treatment of refractory schizophrenia. Recently, there has been an increased recognition of the association of clozapine with myocarditis and cardiomyopathy. Commonly used diagnostic tests have limited sensitivity in diagnosing this potentially life-threatening complication. Here we report a case of 36-year-old male patient who developed fever, tachycardia, and dyspnea after introduction of clozapine. By clinical evaluation and laboratory test we diagnosed the patient with myocarditis and treated him successfully. To our knowledge this is the first case report of clozapine-induced myocarditis in Korea.

Evaluation of sound insulation performance according to aperture conditions under the flush door (세대내 플러시 도어의 하부틈새 조건에 따른 차음성능 평가)

  • An, Ji-Hyeong;Kim, Myung-Jun;Lee, Min-Joo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.11a
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    • pp.153-158
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    • 2007
  • Sound insulation performance of the flush door in the apartment unit was recently decreased due to the door for the purpose of barrier free. To evaluate sound insulation, the test for 13 kinds of flush doors was performed as aperture conditions under the flush door. and the measured value was compared with the predicted values of theoretical sound transmission. The results were summarized follow; First, in case of doors with aperture by barrier free, the single number quantities ($D_{pw}$) were evaluated $21{\sim}23dB$. Whereas, in case of existing door with frame, $D_{pw}$ was evaluated $28{\sim}31dB$. And in case of sealed doors, $D_{pw}$ was evaluated $31{\sim}34dB$. Second, the measured $D_{pw}$ was good agreement with the predicted $D_{pw}$ in condition of small aperture.

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A Case of Korean Herbal Medicine Treatment for Normal Tension Glaucoma using Go-Bang (고방을 통한 정상안압 녹내장의 한방치험 1례)

  • Han Gioen;Kang Eunjeong;Lee Guenseob
    • The Journal of Korean Medicine
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    • v.44 no.3
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    • pp.102-116
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    • 2023
  • Objectives: To provide a case report of effective use of Korean herbal medicine treatment to reduce the development and progression of normal-tension glaucoma(NTG). Methods: This case involved a 52-year-old patient who had a history of excimer laser surgery at the age of 25 and was using prescriptions such as Cosopts2 and Xalatan for eye drops. We treated this patient with Korean herbal medicine treatment for 2 years and assessed the progression of NTG based on the optical coherence tomography test results that he recevied at the ophthalmology clinic every 6 months. Results: During the two years of treatment with Korean herbal medicine, it was observed that the progression of NTG was halted. However, after discontinuing the Korean herbal treatment, the progression resumed. Conclusion: Korean herbal medicine treatment was found to be effective in treating normal tension glaucoma, and a minimum treatment period of two years is necessary for an accurate evaluation of NTG.

Design of Effective Reliability Tests for New Products (신제품 개발에 따른 효과적인 신뢰성 시험 설계)

  • Park, B.H.;Jang, J.S.;Kim, G.Y.;Lee, J.H.;Kim, S.J.;Chan, S.I.;Jeong, K.Y.;Kim, D.J.;Lee, C.B.
    • Journal of Applied Reliability
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    • v.9 no.2
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    • pp.107-119
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    • 2009
  • Reliability tests should be designed to verify whether reliability requirements are satisfied or not effectively and efficiently. The portion of reliability requirements that a reliability test scheme composed of different types of tests can cover is defined as test coverage in software engineering. For the cases of hardwares, to be effective, a reliability test scheme should enhance the test coverage. This study is to develop an evaluation method of test coverage for a reliability test scheme proposed for new products. Case studies are also given.

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Triaxial Shake Table Test about Seismic Performance of Ceiling System with Gypsum Panels (석고 패널이 부착된 천장 시스템의 내진성능 평가를 위한 3축 진동실험)

  • Park, Hae-Yong;Jeon, Bub-Gyu;Kim, Jae-Bong;Gim, Min-Uk
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.35 no.10
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    • pp.143-153
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    • 2019
  • In this study, a full scale 3-axes shake table test for M-bar and T-bar type ceilings commonly used in the country was conducted. Through damage inspection during the test, seismic performance of ceilings according to variables, such as clearance between wall mold and ceiling as well as existence of facilities, was evaluated. A test frame consisted of square hollow section members was used for the shake table test. The experimental method was performed as a fragility test using required response spectrum described in ICC-ES AC156. In the case of architectural nonstructural component that contain ceilings, it mainly is evaluated the performance by post-test visual inspection. For the evaluation of seismic performance of ceilings, this study classified and defined damaged items for targeted ceiling system referring to illustrative damage according to nonstructural performance levels accordance with ASCE 41 and previous studies. And proposed illustrative damage items classification was utilized to compare the degree of the damage according to experimental variables. The experiment results confirmed that differences in boundary conditions due to the clearance at wall mold and the installation of facilities had a significant effect on the seismic performance of the ceiling.