• Title/Summary/Keyword: Functional Testing

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A review of test method the Double-system Track side Functional Modules in High speed line (고속선로변 2중화 정보처리모듈 시험방안 고찰)

  • Chang, Seok-Gahk;Back, Seung-Koo
    • Proceedings of the KSR Conference
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    • 2008.06a
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    • pp.603-609
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    • 2008
  • Nowadays, double-system of TFM(Track-side Functional Modules) developed instead of single-system in use of high speed line to acquisition more availability. Safety Law for Railroad recommend to quality certification of development and general railway machines. It is important to select metrics which form the bases for testing software products. A number of package software development part do not open source cords, so testing external characteristic vectors having relationship with metrics. In this paper, review the process for the TFM Point Modules, Universal Modules and Switchers, think about the test methode of circuit boards output performance by using TFM tester and Simulators.

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A Test Framework for Dynamically Supporting the Simulation Works of the Global Navigation Satellite Systems (위성항법 시뮬레이션 작업을 동적으로 지원하는 테스트 프레임워크)

  • Kuk, Seung-Hak;Kim, Hyeon-Soo;Lee, Sang-Uk
    • Journal of Internet Computing and Services
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    • v.10 no.6
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    • pp.191-203
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    • 2009
  • Simulation is the work that identifies the characteristics of some problem through the simulated experiments. During the experiments it is frequently required to change or replace the simulation models, algorithms, or input/output data. Especially, in the case of the simulation works performed by replacing algorithms, if a replaceable component that implements a specific algorithm is not correct with respect to its functionality it is very difficult to carry out the simulation works successfully. In this paper, we suggest a test framework that verifies functional correctness of the replaceable component in the software-based GNSS (Global Navigation Satellite System) simulation environments. When a component is replaced, this framework enables us to properly execute the functional test for the component according to its context.

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Diagnostic Approaches to Chronic Abdominal Pain in Children (만성 복통을 보이는 환자 어떤 순서로 접근을 해야 하나요?)

  • Park, Jae-Hong
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.14 no.1
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    • pp.26-32
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    • 2011
  • Chronic abdominal pain (CAP) is a common complaint encountered in pediatric clinics and a great concern for patients and their caretakers as well as health care professionals. A constant challenge is detecting individuals with organic diseases or psychosomatic disorders from the majority of patients who have a functional disorder including functional dyspepsia, irritable bowel syndrome, functional abdominal pain, and abdominal migraine. Beginning with a detailed history and physical examination, physicians must determine a differential diagnosis of CAP by applying the symptom-based Rome III criteria to positively identify a functional disorder. These findings should then be further analyzed based on diagnostic clues and red flags that indicate the presence of specific organic diseases and/or the need for further testing. Once a functional diagnosis has been made or an organic disease is suspected, physicians can initiate an empiric therapeutic trial. Since psychological distress accompanies both organic and non-organic abdominal pain in children, a cooperative diagnostic approach involving pediatricians and psychiatrists is recommended.

A Study on Test Working of Signalling System (신호시스템 시운전 시험 연구)

  • 정의진;황종규;이종우
    • Proceedings of the KSR Conference
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    • 2000.05a
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    • pp.157-163
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    • 2000
  • Testing evaluation is a part of process for design, production, evaluation, operation and abolition, and is the process of certifying system performance. The main purpose of testing evaluation is to reduce the risk factor under the determining process. Testing process has the three step such as design qualification, integration and validation test in factory, system integration and commissioning test. Design Qualification is to verify errors on the design process. Integration and validation test in factory is for the H/W and S/W of an equipment and is to verify interface of subsystem, communication protocol and main functions. System integration and commissioning test is a functional test to adjust successful installation of equipment. According to the testing process, briefly consideration for test item, test method and test contents about signalling system is carried out.

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Reconfiguration Problems in VLSI and WSI Cellular Arrays (초대규모 집적 또는 웨이퍼 규모 집적을 이용한 셀룰러 병렬 처리기의 재구현)

  • 한재일
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.18 no.10
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    • pp.1553-1571
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    • 1993
  • A significant amount of research has focused on the development of highly parallel architectures to obtain far more computational power than conventional computer systems. These architectures usually comprise of a large number of processors communicating through an interconnection network. The VLSI (Very Large Scale Integration) and WSI (Wafer Scale Integration) cellular arrays form one important class of those parallel architectures, and consist of a large number of simple processing cells, all on a single chip or wafer, each interconnected only to its neighbors. This paper studies three fundamental issues in these arrays : fault-tolerant reconfiguration. functional reconfiguration, and their integration. The paper examines conventional techniques, and gives an in-depth discussion about fault-tolerant reconfiguration and functional reconfiguration, presenting testing control strategy, configuration control strategy, steps required f4r each reconfiguration, and other relevant topics. The issue of integrating fault tolerant reconfiguration and functional reconfiguration has been addressed only recently. To tackle that problem, the paper identifies the relation between fault tolerant reconfiguration and functional reconfiguration, and discusses appropriate testing and configuration control strategy for integrated reconfiguration on VLSI and WSI cellular arrays.

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Validation Testing of Safety-critical Software (Safety-critical 소프트웨어의 검증시험)

  • Kim, Hang-Bae;Han, Jai-Bok
    • Nuclear Engineering and Technology
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    • v.27 no.3
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    • pp.385-392
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    • 1995
  • A software engineering process has been developed for the design of safety critical software for Wolsong 2/3/4 project to satisfy the requirement of the regulatory body. Among the process, this paper described the detail process of validation testing peformed to ensure that the software with its hardware, developed by the design group, satisfies the requirements of the functional specification prepared by the independent functional group. To perform the test, test facility and test software ore developed and actual safety system computer was connected. Three kinds of test cases, i.e., functional test performance test and self-check test were programmed and run to verify each functional specifications. Test failures ore fedback to the design group to revise the software and test result were analyzed and documented in the report to submit to the regulatory body. The test methodology and procedure were very efficient and satisfactory to perform the systematic and automatic test. The test results were also acceptable and successful to verify the software acts as specified in the program functional specification. This methodology can be applied to the validation of other safety-critical software.

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The Reliability of the Pediatric Functional Muscle Testing in Children with Developmental Delay

  • Seo, Hye-Jung;Kim, Joong-Hwi
    • The Journal of Korean Physical Therapy
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    • v.27 no.4
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    • pp.183-189
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    • 2015
  • Purpose: The aim of this study was to examine the test-retest and inter-rater reliability of the pediatric functional muscle testing (PFMT) when applied to children with developmental delay. Methods: Sixteen children with developmental delay (seven females, nine males) participated in this study. For the inter-rater reliability, each was scored on the PMFT by two pediatric physical therapists with more than 8 years of clinical experience on the same day. For assessment of the test-retest reliability, one therapist tested the children again within 10 days. The second measurement was performed by taking a first measurement in video. Intraclass correlation coefficient (ICC) was calculated to determine the test-retest and inter-rater reliability of the PFMT, and Chronbach's alpha was used to measure internal consistency. Results: The results of this study were as follows: 1) The test-retest ICC of the score of the infant action month and the right side of the PFMT was from 0.53 to 1.00 and from 0.63 to 0.99, respectively. 2) The inter-rater ICC of the score of the infant action month and the right side of the PFMT was from 0.66 to 1.00 and from 0.64 to 1.00, respectively. 3) Chronbach's alpha was 0.93. The internal consistency indicated excellent. Conclusion: In conclusion, this study showed that the test-retest and inter-rater reliability of the PFMT was relatively high, except for a few items. Therefore, it can be suggested that the PFMT will be a useful tool for measurement of muscle strength for children with developmental delay if it be some modifications.

A Study on Dynamic Material Properties of Functional High Explosive Formulation Simulant Subjected to Dynamic Loading (동적하중을 받는 기능성 고폭화약조성 시뮬런트 재료물성 연구)

  • Park, Jungsu;Yeom, Kee Sun;Park, Chunghee;Jeong, Sehwan;Lee, Keundeuck;Huh, Hoon
    • Journal of the Korea Institute of Military Science and Technology
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    • v.16 no.6
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    • pp.857-866
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    • 2013
  • This paper is concerned with the material properties of functional high explosive(FHX) simulant at various strain rates ranging from $10^{-4}/sec$ to $10^1/sec$. Material properties of FHX at high strain rates are important in prediction of deformation modes of FHX in a warhead which undergoes dynamic loading. Inert FHX stimulant which has analogous mechanical properties with FHX was utilized for material tests due to safety issues. Uniaxial tensile tests at quasi-static strain rates ranging from $10^{-4}/sec$ to $10^{-2}/sec$ and intermediate strain rates ranging from $10^{-1}/sec$ to $10^1/sec$ were conducted with JANNAF specimen using a tensile testing machine, INTRON 5583, and developed high speed material testing machine, respectively. Uniaxial compressive tests at quasi-static strain rates and intermediate strain rates were conducted with cylindrical specimen using a dynamic materials testing machine, INSTRON 8801. And cyclic compressive loading tests were performed with various strain rates and strains. Deformation behaviors were investigated using captured images obtained from a high-speed camera.

A PARAMETER CHANGE TEST IN RCA(1) MODEL

  • Ha, Jeong-Cheol
    • 한국데이터정보과학회:학술대회논문집
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    • 2005.10a
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    • pp.135-138
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    • 2005
  • In this paper, we consider the problem of testing for parameter change in time series models based on a cusum of squares. Although the test procedure is well-established for the mean and variance in time series models, a general parameter case was not discussed in literatures. Therefore, here we develop the cusum of squares type test for parameter change in a more general framework. As an example, we consider the change of the parameters in an RCA(1) model. Simulation results are reported for illustration.

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