• Title/Summary/Keyword: Test item priority

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A Study on Waste Factors and Improvement Priorities of Missile Flight Test Works (유도무기 비행시험 업무 개선을 위한 낭비요인과 우선순위 분석 연구)

  • Ahn, Jangkeun;Kim, Euihwan
    • Journal of the Korea Institute of Military Science and Technology
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    • v.21 no.4
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    • pp.541-550
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    • 2018
  • The works of preparing for missile flight test are becoming more complicated. To reduce the amount of waste time along with the complexity of the task, systematic analysis of waste factors should be performed before performing process improvement. The waste factors for missile flight test are first defined using lean-based waste factors. The improvement priorities for the defined waste factors are surveyed. For reliable analysis, AHP is used in questionnaire analysis instead of the existing method with large error. Then weighting and priority for waste factors for level 1 and Level 2 are suggested. Through AHP, we could derive reliable improvement priorities for waste factors. It is analyzed that the biggest cause of waste factors is waiting time and identified as the first item to be considered when establishing improvement plan. In addition, suggestions for improvement measures of waste factors are presented through brainstorming method. Reliable results will be an important factor in process redesign for missile flight test works.

Analysis of Education Needs for Instructional Competency of Lifelong Education Instructor (평생교육 교수자의 교수 역량에 대한 교육 요구 분석)

  • Kim, Mi-jeong;Ahn, Young-Sik
    • Journal of vocational education research
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    • v.36 no.4
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    • pp.41-56
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    • 2017
  • The purpose of this study is to analyze the level of current difference of education needs for instructional competency of lifelong education instructor and the level of importance of lifelong education for drawing priority. Through the literature review, this is divided the lifelong education instructor's competencies such as planning, implementation, management and support and analyzed the current level and importance with 35 items through t-test analysis. The priority for education needs is applied to Borich and the Locus for Focus model simultaneously. According to result for study, the largest item of competency for lifelong education instructor is verified with the current level and importance for building of social networking and managing competency. The top priority item of education needs for instructional competency of lifelong education instructor is located in the first quadrant of model and the Locus for Focus model, according to priority in needs for Borich and was showed in program competency. The second items in priority were derived by learning resources, information gathering, competency for focus development, equitable evaluation for student, competency for building team work. Therefore, these competencies are considered as factors for priority of lifelong instructor and will be developed in personal and organizational development.

A Study on the Improvement of ILS Test & Evaluation for Ground Weapon Systems (지상무기체계 ILS 시험평가 개선방안)

  • 최시영;최석철
    • Journal of the military operations research society of Korea
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    • v.30 no.1
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    • pp.168-188
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    • 2004
  • Integrated Logistic Support (ILS) is a management and technical process whereby all the diverse elements needed to fully operate, maintain, and totally support a materiel system in the field are identified, developed, and deployed simultaneously and on an equal priority with the item of materiel being supported. The test and evaluation (T&E)of ILS act the important role of reduction of life-cycle cost and keeping of good performance for weapon system. In this article, we suggest the alternatives for improvement in the test and evaluation of ILS during weapon system acquisition. It is hoped that this research is valuable and beneficial to persons related weapon system acquisition, in order to maximize the efficiency of defense acquisition management by reducing the life-cycle cost and enhancing the quality of weapon system.

Test Item Prioritizing Metrics for a Selective Software Testing (차별화된 소프트웨어 시험을 위한 시험항목 우선순위 조정)

  • Lee, Jae-Ki;Lee, Jae-Jeong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.33 no.1B
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    • pp.38-47
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    • 2008
  • The system test was accomplished in delivery time for a suitable of various requirements at the software market. Especially, critical faults must be detected and removed for a close main functions and users against target system. In generally, proposed test methods are executed with a calendar time, not a competitive and effectiveness method as selective software testing. These methods are inapplicable to short term test or early system development stage. Moreover, it's accompanied by heavy cost. Overcoming of these problems, must attempted to new software test method role of core function in the system test. Selective software testing method is decided to mixing with the three-information such as a frequency, complexity of use scenario and fault impact. Using this information, searching a fatal error and usefully system test for an executed test scenario. In this paper, we have proposed new test method and verified testing results for the detection of critical faults or search a fatal errors with a system main function.

A Study on the Design of Test Item Framework for the Reliability of Frozen and Refrigerated Products with IoT Function (IoT 기능을 보유한 냉동·냉장 제품의 신뢰성 확보를 위한 시험항목 프레임워크 설계에 관한 연구)

  • Cho, Kyoung Rok;Lee, Jung Jae;Lee, Eun-Ser
    • KIPS Transactions on Software and Data Engineering
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    • v.10 no.6
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    • pp.211-222
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    • 2021
  • Recently, frozen and refrigerated appliances on the market are being released with additional IoT functions, but there are few tests on IoT functions. In particular, the existing test system does not have IoT test items for IoT-based frozen and refrigerated appliances, making it difficult for companies to find the cause even if defects occur, and test institutions are also restricted from selecting IoT-related test items and conducting correct performance tests. In this paper, we design a test item framework that can identify product defects and identify causes in the performance test process of frozen and refrigerated products with IoT functions among products in the home appliance field, and propose test methods and management measures using them. Through the proposed research, manufacturers and testing institutions can test the correct performance of IoT-based frozen and refrigerated products, thereby enhancing the completeness and securing reliability of the products.

A Study on the Design of a Test Item Framework for Securing Reliability of Laundry Home Appliances Using IoT Functions (IoT 기능을 적용한 세탁 가전제품의 신뢰성 확보를 위한 시험항목 프레임워크 설계에 관한 연구)

  • Cho, Kyoung-Rok;Park, Woo Jung;Lee, Eun-Ser
    • KIPS Transactions on Software and Data Engineering
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    • v.11 no.2
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    • pp.67-80
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    • 2022
  • Recently, many laundry home appliances have been released with Internet of Things (IoT) functions, but there are few quality evaluation tests for IoT functions. In particular, since IoT test items are not prepared for laundry home appliances applied with IoT functions, it is difficult to find the cause even if defects occur, and test institutions are limited in selecting test items related to IoT and conducting proper performance tests. In this paper, we design a test item framework that separates IoT test items into commonality and variability to identify product defects and causes for laundry home appliances with IoT features among products in the field of home appliances. Through the proposed research, manufacturers and test institutions can test the proper performance of laundry products with IoT functions, which can improve the completeness of the products and ensure reliability.

Establishment and Effectiveness Analysis of Emergency Vehicle Priority Signal Control System in Smart City and Directions for ISMS-P Technical Control Item Improvement (스마트시티 내 긴급차량 우선신호 제어시스템 구축과 효과성 분석 및 ISMS-P 기술적 통제항목 개선 방향성 연구)

  • Yoon, TaeSeok;Park, Yongsuk
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.25 no.9
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    • pp.1166-1175
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    • 2021
  • We investigate the current situation and development trend of domestic smart city and emergency vehicle priority signal control system analyzing the existing effectiveness of 1) emergency vehicle priority signal control system and 2) control emergency vehicle priority signal, based on domestic and foreign prior research for signal control system security. The effectiveness of time reduction was analyzed through actual application and test operation to emergency vehicles after establishing the system. In addition, for security management and stable service of real-time signal system control we propose improvement for the technical control items of the ISMS-P certification system to secure golden time to protect citizens' precious lives and property in case of emergency by classifying and mapping the existing ISMS-P certification system and the Korea Internet & Security Agency's cyber security guide according to the items of security threats.

A Study on Pre-school Teachers' Perception of 7 Guidelines of Safety Education: Using IPA Methodology (유아교사가 인식하는 유치원 안전교육 표준안에 대한 연구 : IPA기법을 중심으로)

  • Kang, Min-Jung;Han, Sun-Ah
    • The Journal of the Korea Contents Association
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    • v.17 no.6
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    • pp.661-671
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    • 2017
  • The purpose of this study is to compare and analyze the difference between the importance perceived by pre-school teachers and their actual performance in regards to the 7 Guidelines of Safety Education set out by the Ministry of Education, and through the analysis, to identify the items that need priority support and those that need long-term improvement efforts for exemplary safety education for young children. For this, mean average and standard deviation were calculated and paired sample t-test conducted, and IPA(Importance-Performance Analysis) matrix method was performed to analyze the priority and long-term support items and improvement needs. The study results show differences in all areas and all items in the 7 Guidelines of Safety Education by the MoE in the pre-school teachers' perceived importance and actual performance. Areas and items that are identified to be in need of priority support for exemplary safety education in pre-schools; 2 items under 'Violence and Personal Safety' area and I item under 'Substance and Internet Addictions' area. Areas and items that are identified to be in need of long-term improvement efforts are; 6 items under 'First Aid and Emergency Treatment' area, 1 item under 'Violence and Personal Safety' area, 3 items under 'Workplace Safety Culture' area, 3 items under 'Substance and Internet Addictions' area and 1 item under 'Disaster and Safety' area.

A Study of the Ethical Values of EMT students (응급구조과 학생의 윤리적 가치관에 관한 연구)

  • Kim, Mi-Seon
    • The Korean Journal of Emergency Medical Services
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    • v.5 no.1
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    • pp.37-51
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    • 2001
  • This study is aimed at examining the ethical values of EMT students. The results below are based on the revised questionnaires, which can be applicable to EMT from the original questionnaires developed by Lee(1990), with a sample of 124 students consisting of 63 first and 61 second year students, conducted November 2-8, 2001. Data were analyzed using SPSS in terms of means, standard deviations, t-test, ANOVA, Pearson's correlation coefficient. The results are as follows: 1. In the area of Human life, all subjects showed utilitarian disposition. All respondents perceived the item "When patients recognizing there is no hope for survival ask for euthanasia, it is ethically right to accommodate their opinions." as the most utilitarian item, whereas they perceived the item "When an hopeless patient is on cardiac arrest, it is ethically right to do CPR as the most deontoogical item. 2. In the area of patient relationship, all students of two groups took on deontoogical characteristics, but there were no statistically significant differences between two groups. All students perceived an item "EMT have to keep it secret if patients disclose their suicide intentions and ask for absolute secrecy" the most utilitarian item, whereas they perceived an item "Even though patients act and speak in a very rude manner, EMT people should do their best to provide care for patients." as the most deontoogical item. 3. In the area of task relationship, first year students perceived an item "Given time limitations, it is ethically right to give priority to the patients who can be rehabilitated over the patients who can't be fully recovered." as the most utilitarian item, whereas second year students perceived an item "Under no circumstances should any placebo be administered to patients." as the most utilitarian item. All students perceived an item "When EMT students see an unconscious person lying in the street, they have to give him/her emergency treatment." as the most deontoogical item. 4. In the area of coworker relationship, all students of two groups took on deontoogical disposition, but there were no significant differences between two groups. All students of two groups perceived an item "Suppose you are regarded as the person who would be promoted. However, you think that your coworker is more competent than you. In that case you should tell your supervisor about your coworker." as the most utilitarian item. First year students perceived an item, whereas second year students perceived an item "When you observe coworkers' misconduct at work, it is ethically right to ignore their misdeeds." as the most deontoogical item. 5. This study demonstrated that for the first year students, there is a correlational relationship between areas of human life and task relationship, and between areas of task relationship and coworker relationship, whereas for the second year students, there is a correlational relationship between areas of human life and task relationship. 6. In areas of human life and task relationship, there are significant differences according to attitudes toward EMT and attendance at ethics training sessions. In the area of coworker relationship, there are significant differences according to religion, attendance at ethics training sessions, and a code of ethics. Recommendations for future research, 1. Sample items to measure ethical values and the instrument tailored to the needs of EMT should be developed. 2. A longitudinal study to track ethical value changes according to the amount of work experience is needed. 3. A code of ethics and/or ethics training, which could apply in actual situations, should be implemented.

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Test Method to Evaluate the Fiber Material Properties of Filament Wound Composite Pressure Vessel (필라멘트 와인딩 복합재 압력용기의 섬유 방향 물성 평가 기법)

  • Hwang, Tae-Kyung;Park, Jae-Beom;Kim, Hyoung-Geun
    • Composites Research
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    • v.23 no.3
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    • pp.37-42
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    • 2010
  • The fiber material properties, elastic constant and strength, are the most important factors among the various material properties for the design of composite pressure vessel, because of it's dominant influence on the performance of composite pressure vessel. That is, the deformation and burst pressure of pressure vessel highly affected by the fiber material properties. Therefore, the establishment of test method for exact fiber material properties is a priority item to design a composite pressure vessel. However, the fiber material properties in filament wound pressure vessel is very sensitive on various processing variables (equipment, operator and environmental condition etc..) and size effect, so that it isn't possible to measure exact fiber material properties from existing test methods. The hydro-burst test with full scale pressure vessel is a best method to obtain fiber material properties, but it requires a enormous cost. Thus, this paper suggests a newly developed test method, hoop ring test, that is capable of pressure testing with ring specimens extracted from real composite pressure vessel. The fiber material properties from hoop ring test method showed good agreement with the results of hydro-burst test with full scale composite pressure vessels.