• Title/Summary/Keyword: performance requirements

Search Result 3,525, Processing Time 0.042 seconds

Deriving the Performance Requirements of a Window Cleaning Apparatus through Technology Survey (기술조사를 통한 창문청소장치의 요구성능 도출)

  • Kim, Kyoon-Tai;Jun, Young-Hun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2016.10a
    • /
    • pp.162-163
    • /
    • 2016
  • Conventional window cleaning method has a number of limitations, for example, workers dependent and high crash risk. The purpose of this study is to derive the performance requirements of a window cleaning apparatus through technology survey. For this, we investigated the domestic and international patents related to window cleaning, and interviewed experts in the field of window cleaning and mechanical design. Through this research, we have proposed performance requirements of the window cleaning apparatus.

  • PDF

On a Hierarchical Model for Effectively Managing ILS Requirements of Electronic Warfare Equipments (전자전장비 개발에서 종합군수지원 요구사항의 효과적 관리를 위한 계층적 모델)

  • Kim, Ghi-Back;Lee, Jae-Chon
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.13 no.5
    • /
    • pp.801-807
    • /
    • 2010
  • Requirements management is one of the most essential activities of systems engineering in developing successful weapon systems. Particularly it is very important to consistently manage the traceability among the user requirements, the system requirements, the development specifications and the testing plans throughout the entire life cycle of the weapon system. However, the most part of requirements-related activities has centered around the functional and performance requirements but the integrated logistics support(ILS) requirement has not properly been managed. In this regard, a special attention is needed to develop and manage the ILS requirements. To do so, the ANSI/EIA-632 standard can be referred as a starting point since the ILS requirements of the weapon system under development are specified by the enabling products whereas the functional and performance requirements are covered by the end product requirements. Specifically, we first review and model several cases of previous weapon systems development, which reveals the problem of interest. Then, under the framework of ANSI/EIA-632, we study a hierarchical model for effectively managing ILS requirements by analyzing the features of ILS requirements. Finally, the value of the proposed model is discussed through the case study of electronic warfare equipment.

A Study on Determining the Performance Requirements of Ship's Inertial Navigation System Based on Ring Laser Gyroscope (링 레이저 자이로 기반 함정용 관성항법장치 성능규격 결정에 대한 연구)

  • Kim, Cheonjoong;Yu, Haesung;Yoo, Kijeong;Park, Chanju;Lee, Sangjeong
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.21 no.6
    • /
    • pp.731-743
    • /
    • 2018
  • In this paper, a study result to decide the accuracy specifications of inertial sensors satisfying the performance requirements of SINS(ship's inertial navigation system) is proposed. To do this, the performance specifications of overseas SINS is surveyed and the detailed error analysis of SINS at stationary condition is performed. Also, a new performance index to indicate the performance of SINS is derived. Modelling and simulation results show that the accuracy specifications of inertial sensors to meet the performance requirements of SIGMA40XP, a typical overseas SINS, can be determined through the newly derived performance index in this paper.

Functional analysis of air transport mission (항공 수송 임무의 기능 분석에 관한 연구)

  • Song, Youn-Seob
    • Journal of the Korean Society for Aviation and Aeronautics
    • /
    • v.16 no.4
    • /
    • pp.41-48
    • /
    • 2008
  • Functional analysis of air transport mission is conducted to establish the performance requirements of the commercial transport designs. The analysis process begins by making a top-down analysis to the aircraft system level mission functions. Correctly interpreting the top-level performance requirements is the first step in designing and building an aircraft system. Each function and sub-function is allocated and examined to the aircraft level and flight operations phase to optimize the system performance and design requirements, such that these lower-level requirements can be traced back to the top-level requirements they are designed to fulfill. Special attention is given to making sure all interfaces, both internal and external, are addressed. The results are also in good resources of functional hazard assessment involved in certification processes.

  • PDF

Durability and Performance Requirements in Canadian Cement and Concrete Standards (캐나다 시멘트 및 콘크리트의 내구성 및 제성능에 대한 규준)

  • Hooton, R.D.
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2006.05a
    • /
    • pp.5-21
    • /
    • 2006
  • Traditional standards and specifications for concrete have largely been prescriptive, (or prescription-based), and can sometimes hinder innovation and in particular the use of more environmentally friendly concretes by requiring minimum cement contents and SCM replacement levels. In December 2004, the Canadian CSA A23.1-04 standard was issued which made provisions (a) for high-volume SCM concretes, (b) added new performance requirements for concrete, and (c) clearly outlined the requirements and responsibilities for use in performance-based concrete specifications. Also, in December 2003, the CSA A3000 Hydraulic Cement standard was revised. It (a) reclassified the types of cements based on performance requirements, with both Portland and blended cements meeting the same physical requirements, (b) allows the use of performance testing for assessing sulphate resistance of cementitious materials combinations, (c) includes an Annex D, which allows performance testing of new or non-traditional supplementary cementing materials. From a review of international concrete standards, it was found that one of the main concerns with performance specifications has been the lack of tests, or lack of confidence in existing tests, for judging all relevant performance concerns. Of currently used or available test methods for both fresh, hardened physical, and durability properties, it was found that although there may be no ideal testing solutions, there are a number of practical and useful tests available. Some of these were adopted in CSA A23.1-04, and it is likely that new performance tests will be added in future revisions. Other concerns with performance standards are the different perspectives on the point of testing for performance. Some concrete suppliers may prefer processes for both pre-qualifying the plant, and specific mixtures, followed only with testing only 'end-of-chute' fresh properties on-site. However, owners want to know the in-place performance of the concrete, especially with high-volume SCM concretes where placing and curing are important. Also, the contractor must be aware of, and share the responsibility for handling, constructability, curing, and scheduling issues that influence the in-place concrete properties.

  • PDF

A Study on the Framework of Operational Requirements Document(ORD) for Weapons System after Requirements Decision (소요결정 이후의 무기체계 운용요구서(ORD) 작성 프레임 연구)

  • Lee, Jeongyeol
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.23 no.1
    • /
    • pp.87-95
    • /
    • 2020
  • Delivering the weapons system requirements of the military to the acquirer is an essential activity for the development of the defense industry as well as the successful acquisition of a weapons system. In order to ensure successful delivery of requirements, the creation of a weapons system Operational Requirements Document(ORD) has been mandated since 7. 2013. However, according to the results of a study which analyzes recently-created ORD, a number of problems are occurring. For one, some items in created ORDs differ from what the ORD template requires. In addition, the overall mission area of the weapons system to be acquired and the core parts(operation performance, system performance, and core performance) of ORD are being poorly recorded. In response, this study presented a framework(focused on a creating method of overall contents and core parts) for the creation of ORDs which can solve the problems that arose during ORD creation in the past.

Study of requirements for protective current transformers for transient performance (보호용 변류기의 과도성능에 대한 고찰)

  • Jung Heung-Soo;La Dae-Ryeol;Kim Sun-Koo;Roh Chang-il;Kim Won-Man;Lee Dong-Jun
    • Proceedings of the KIEE Conference
    • /
    • summer
    • /
    • pp.839-841
    • /
    • 2004
  • IEC 60044-6 (Requirements for protective current transformers for transient performance) was established to Korea Standard (KS C IEC 60044-6 ; Instrument transformers Part 6 ; Requirements for protective current transformers for transient performance) in December 11, 2003. In this paper, requirements, test items and test methods protective current transformers for transient performance.

  • PDF

The Effects of ISO 22301 and ISMS Certification Requirements on Business Performance: Focusing on Mediation of Corporate Culture (ISO 22301과 ISMS 인증 요구사항이 기업성과에 미치는 영향 : 기업문화 매개를 중심으로)

  • Lee, Sun-won;Cheung, Chong-Soo
    • Journal of the Society of Disaster Information
    • /
    • v.16 no.3
    • /
    • pp.558-576
    • /
    • 2020
  • Purpose: This study wanted to empirically study the effects of ISO 22301 and ISMS certification requirements on Business Performance. Method: For research, a survey was conducted on ISO 22301 and ISMS-certified companies to collect data and use SPASS18 and AMOS18 for statistical analysis. Results: Verification of the hypotheses through the questionnaire demonstrated that BCP, BCM operation, management, and access control of ISO 22301 and ISMS certification requirements, including BIA, risk assessment, BCP, BCM, BCM operation, management, and access security requirements, affect the enterprise's performance (quality improvement, customer satisfaction, financial performance) through the intermediation of the enterprise culture, and the feasibility of the survey paper is high. Conclution: This study has derived the impact of ISO 22301 and ISMS certification requirements on business performance, and based on this, it is deemed necessary to present improvements to ISO 22301 and ISMS certification, and to study future ISO 22301 certification activation and domestic certification, BCMS.

The Effect of Quality Management System of Small and Medium Manufacturing Companies on Management Performance in the Age of Digital Transformation: Focusing on the Leadership Mediation Effect (디지털 전환시대에 중소제조기업의 품질경영시스템이 경영성과에 미치는 영향: 리더십 매개효과를 중심으로)

  • Lee, JuYong
    • Journal of Korea Society of Digital Industry and Information Management
    • /
    • v.18 no.1
    • /
    • pp.163-177
    • /
    • 2022
  • The purpose of this study is to analyze the impact of quality management system requirements, which are techniques for management innovation to secure competitiveness of small and medium-sized manufacturers, on management performance as economic uncertainties increase and non-face-to-face culture spread. To this end, a survey was conducted on small and medium-sized manufacturing companies that maintain ISO certification. As a result of the study, first, it was found that planning had a positive effect on management performance among the requirements of the quality management system. Second, it was found that improvement among the requirements of the quality management system had a positive effect on management performance. Third, in the relationship between the requirements of the quality management system and management performance, leadership was found to have a complete mediating effect on planning. This means that the CEO plays a large role in establishing strategies for companies to gain a competitive advantage and will contribute to establishing all measures.

Effects of ISO 9001:2008 Requirement Execution and TQM on Financial Performance (ISO 9001:2008 요구사항 실행이 TQM과 재무성과에 미치는 영향)

  • Park, Moo-Hyun
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.35 no.2
    • /
    • pp.80-87
    • /
    • 2012
  • It is well known that ISO 9001 and TQM have significant effects on business success. We analyzed the effects of ISO 9001 requirements and TQM on financial performance with structural equation modeling. Hypotheses are proposed and tested based on existing beliefs, proposition and prior research concerning quality. Survey data were collected from 291 manufacturing companies with ISO 9001 certifications. The data show that ISO 9001:2008 requirements have significant positive direct effects on TQM practices, but do not have positive direct effects on financial performance. As expected, TQM has significant positive direct effects on financial performance. One of the important results is that efforts to meet ISO 9001:2008 requirements enhance TQM practices which, in turn, helps to improve financial performance. Findings in this study support the claims that ISO 9001:2008 would be a good step toward total quality management and is a meaningful component of TQM.