• Title/Summary/Keyword: computer-based test

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Measurement Accuracy of Oscillation-Based Test of Analog-to-Digital Converters

  • Mrak, Peter;Biasizzo, Anton;Novak, Franc
    • ETRI Journal
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    • v.32 no.1
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    • pp.154-156
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    • 2010
  • Oscillation-based testing of analog-to-digital converters represents a viable option for low-cost built-in self-testing in mixed-signal design. While numerous papers have addressed implementation issues, little attention has been paid to the measurement accuracy. In this letter, we highlight an inherent measurement uncertainty which has to be considered when deriving the parameters from the oscillation frequency.

Design of Test Access Mechanism for AMBA based SoC (AMBA 기반 SoC 테스트를 위한 접근 메커니즘 설계)

  • Min, Pil-Jae;Song, Jae-Hoon;Yi, Hyun-Bean;Park, Sung-Ju
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.43 no.10 s.352
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    • pp.74-79
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    • 2006
  • Test Interface Controller (TIC) provided by ARM Ltd. is widely used for functional testing of System-on-Chip (SoC) adopting Advanced Microcontroller Bus Architecture (AMBA) bus system. Accordingly, this architecture has a deficiency of not being able to concurrently shifting in and out the structural scan test patterns through the TIC and AMBA bus. This paper introduces a new AMBA based Test Access Mechanism (ATAM) for speedy testing of SoCs embedding ARM cores. While preserving the compatability with the ARM TIC, since scan in and out operations can be performed simultaneously, test application time through the expensive Automatic Test Equipment (ATE) can be drastically reduced.

Towards Enacting a SPEM-based Test Process with Maturity Levels

  • Dashbalbar, Amarmend;Song, Sang-Min;Lee, Jung-Won;Lee, Byungjeong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.11 no.2
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    • pp.1217-1233
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    • 2017
  • Effective monitoring and testing during each step are essential for document verification in research and development (R&D) projects. In software development, proper testing is required to verify it carefully and constantly because of the invisibility features of software. However, not enough studies on test processes for R&D projects have been done. Thus, in this paper, we introduce a Test Maturity Model integration (TMMi)-based software field R&D test process that offers five integrity levels and makes the process compatible for different types of projects. The Software & Systems Process Engineering Metamodel (SPEM) is used widely in the software process-modeling context, but it lacks built-in enactment capabilities, so there is no tool or process engine that enables one to execute the process models described in SPEM. Business Process Model and Notation (BPMN)-based workflow engines can be a solution for process execution, but process models described in SPEM need to be converted to BPMN models. Thus, we propose an approach to support enactment of SPEM-based process models by converting them into business processes. We show the effectiveness of our approach through converting software R&D test processes specified in SPEM in a case study.

Development of the Software to test Pattern Diagnosis Ability in Oriental Medicine (변증 능력 평가 소프트웨어의 구현)

  • Kim, Ki-Wang;Chang, Jae-Soon
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.14 no.1
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    • pp.70-78
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    • 2010
  • Objectives : To qualify or enhance the diagnostic ability of students in Oriental Medicine, so called standardized patients are ideal modality, but because it's a man-based method, more convenient tools are required. Computer-based diagnostic ability test program gives effective way for the very purpose. So we made a pilot software evaluating Pattern Identification ability in Oriental Medicine. Methods and Materials : The pilot software was coded with Microsoft's EXCEL VBA. 87 names of Zheng (Symptom Pattern) and 674 names of symptom (including some signs) are adopted from the former standardization works conducted by Korean Institute of Oriental Medicine (KIOM) in 1996. Results : Compared with some manned modalities to test Pattern Identification ability, the test by this software shows superiority in convenience and objectivity. Conclusion : This software is world's first program to perform computer-based evaluation of Pattern Identification in Oriental Medicine, and it gives effective way to complement both written test and manned clinical performance test (CPX).

Analysis of the difficulty and discrimination of paper-based tests and computer-based tests according to item response theory: focusing on the National Dental Technician Examination (문항반응이론에 따른 지필 시험과 컴퓨터적용 시험의 난이도와 변별도 분석: 치과기공사 국가시험을 중심으로)

  • Hwang, Kyung-Sook
    • Journal of Technologic Dentistry
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    • v.44 no.3
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    • pp.104-110
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    • 2022
  • Purpose: This study analyzes the difficulty and discrimination of the paper-based test (PBT) and the computer-based test (CBT) according to item response theory, focusing on the National Dental Technician Examination. Methods: A mock test was conducted from September 15 to 23, 2020, and the final 179 (1 out of 180 absentees)people were the subjects of this study. Both frequency analysis and factor analysis were performed. The collected data were analyzed using IBM SPSS Statistics ver. 18.0 (IBM) and jMetrik programs. The significance level was set to 0.05. Results: The difficulty of the mock test was more easily responded to in CBT. It was also predicted that the CBT could better measure the ability of test takers than the PBT could. Conclusion: The difficulty, discrimination, and reliability of the questions were not affected by the examination method through the mock test. The feasibility of a future change to the CBT was confirmed by the National Dental Technician Examination.

A Review of Structural Testing Methods for ASIC based AI Accelerators

  • Umair, Saeed;Irfan Ali, Tunio;Majid, Hussain;Fayaz Ahmed, Memon;Ayaz Ahmed, Hoshu;Ghulam, Hussain
    • International Journal of Computer Science & Network Security
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    • v.23 no.1
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    • pp.103-111
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    • 2023
  • Implementing conventional DFT solution for arrays of DNN accelerators having large number of processing elements (PEs), without considering architectural characteristics of PEs may incur overwhelming test overheads. Recent DFT based techniques have utilized the homogeneity and dataflow of arrays at PE-level and Core-level for obtaining reduction in; test pattern volume, test time, test power and ATPG runtime. This paper reviews these contemporary test solutions for ASIC based DNN accelerators. Mainly, the proposed test architectures, pattern application method with their objectives are reviewed. It is observed that exploitation of architectural characteristic such as homogeneity and dataflow of PEs/ arrays results in reduced test overheads.

Analysis of the Satisfaction with Computer Based Test Program and Test Environment in Medical School (의과대학의 컴퓨터기반시험 프로그램 및 시험환경 만족도 분석)

  • Kim, Soon Gu;Lee, Aehwa;Hwang, Ilseon
    • Korean Medical Education Review
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    • v.22 no.3
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    • pp.198-206
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    • 2020
  • This study aimed to identify needed improvements to current evaluation methods in medical school computer-based test (CBT) programs and test environments. To that end, an analysis of the importance and satisfaction was conducted through a survey of 3rd and 4th year medical students who had sufficient experience with CBT programs. Importance performance analysis methodology using the correlation coefficient was applied to assess average satisfaction and importance. The first quadrant (keep up the good work) was a factor of review and time management and test facilities among the conveniences of the CBT program. The second quadrant (concentrate here) was a factor of the convenience of the CBT program and computer monitor and chair factor within the test facilities. The third quadrant (low priority) was a factor of cheating and computer failure. The fourth quadrant (possible overkill) was the location, spacing, and temperature factors of the test facilities. Improvements are needed to reduce 'eye fatigue' and help students focus and understand the questions in the CBT programs. It is necessary to improve computer monitors, desks and chairs, and consider the subject's body type and manager in order to cope with computer breakdown and peripheral failures. Spare computers are needed. These findings are meaningful in that they have been able to identify factors that require improvement in the CBT program and test environment resulting from changes in assessment tools.

Efficient AMBA Based System-on-a-chip Core Test With IEEE 1500 Wrapper (IEEE 1500 래퍼를 이용한 효과적인 AMBA 기반 시스템-온-칩 코아 테스트)

  • Yi, Hyun-Bean;Han, Ju-Hee;Kim, Byeong-Jin;Park, Sung-Ju
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.45 no.2
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    • pp.61-68
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    • 2008
  • This paper introduces an embedded core test wrapper for AMBA based System-on-Chip(SoC) test. The proposed test wrapper is compatible with IEEE 1500 and can be controlled by ARM Test Interface Controller(TIC). We use IEEE 1500 wrapper boundary registers as temporal registers to load test results as well as test patterns and apply a modified scan test procedure. Test time is reduced by simultaneously performing primary input insertion and primary output observation as well as scan-in and scan-out.

A Study on the Efficient Management of Liberal Education for Improving Computer Literacy

  • Koo, GeumSeo;Sim, Gab-Sig
    • Journal of the Korea Society of Computer and Information
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    • v.22 no.11
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    • pp.143-149
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    • 2017
  • In this paper, we propose efficient management method of liberal education for improving computer literacy. We analyzed the actual conditions and factors affecting education and reflected the analysis results in education. The subject of the study is 'Practice Excel', and tested achievement based on computer literacy. In order to evaluate objectively, we conducted CBT(Computer Based Test) based on Computer Specialist in Spreadsheet & Database Level-2. Analysis of the questionnaire included the use of the popular statistical program, IBM SPSS 24 trial, and frequency, ANOVA, t-test, crossover analysis, and correlation. Evaluation results, An important factor influencing educational performance was active participation. It also proved to be very helpful for understanding excel functions & expression.

Efficient Pre-Bond Testing of TSV Defects Based on IEEE std. 1500 Wrapper Cells

  • Jung, Jihun;Ansari, Muhammad Adil;Kim, Dooyoung;Park, Sungju
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.16 no.2
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    • pp.226-235
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    • 2016
  • The yield of 3D stacked IC manufacturing improves with the pre-bond integrity testing of through silicon vias (TSVs). In this paper, an efficient pre-bond test method is presented based on IEEE std. 1500, which can precisely diagnose any happening of TSV defects. The IEEE std. 1500 wrapper cells are augmented for the proposed method. The pre-bond TSV test can be performed by adjusting the driving strength of TSV drivers and the test clock frequency. The experimental results show the advantages of the proposed approach.