软件行业质量保证与MECE原则结合的实践

基于MECE“相互独立,完全穷尽”原则,对质量保证(QA)工作中的问题进行分析,并建立逻辑分析树,将历史积累的QA问题从过程监控角度分出五大类以度量分析,从而帮助QA确立质量管理活动中相对的优先级,有利于QA更加有针对性地采取措施进行质量保证过程的监察和纠正.     

可实现动态调试、检测和质量保证的综合诊断测试方案

企业级设备软件诊断解决方案Wind River Lab Diagnostics可实现设备软件开发过程中多职能开发小组合作开发工作的程序动态调试、检测和质量保证（QA）。     

励声电子新品推介

QA系列功放的主要特征（1）QA系列功放拥有完善的保护系统①独特可靠的短路保护线路。线路在短路时立即最大限度压缩前级输入信号,并断开输出继电器,继而通过线路将功放锁死,只有在排除短路故障后重新开机方可工作,使得整个音响系统非常安全可靠。     

CMM中软件质量保证在ERP实施中的应用研究

在国内ERP实施过程中，缺乏有效的软件质量保证（SQA）活动。探讨了应用SQA于ERP实施的可行性。通过对比分析ERP实施和软件开发的过程，提出在ERP实施中的SQA解决方案。     

什么是QA

QA即英文QUALITY ASSURANCE的简称，中文意思是品质保证，其在ISO8402-1994中的定义是”为了提供足够的信任表明实体能够满足品质要求，而在品质管理体系中实施并根据需要进行证实的全部有计划和有系统的活动”。有些推行IS09000的组织会设置这样的部门或岗位，负责ISO9000标准所要求的有关品质保证的职能，担任这类工作的人员就叫做QA人员。     

QC小组的主要职能

（1）学习质量管理方法，制定措施，实施计划。在活动过程中出现问题，应立即提出改进方案，修改活动计划。     

对PDK实现程序化QA的难点处理

本文主要研究了如何利用SKILL汇编语言实现对PDK程序化QA,并且以MOS管为例,着重介绍了在实现自动化QA过程中出现的主要问题以及有关难点的解决方法。从而可以得出,PDK的QA是一项非常复杂化的设计工作,需要一套行之有效的设计开发流程。不仅需要对大量的参数进行处理,同时对PDK中每一项参数的变化也需要进行验证,量化,进而对整个数据包进行系统建模,整体验证等等。     

摩托罗拉QA30商务手机

凭借简洁的直板造型及强大的商务功能，摩托罗拉（MOTOROLA）Q系列自推出以来就得到不少用户的喜爱。日前，摩托罗拉又与美国移动运营商US Cellular合作，以定制的形式推出了Q系列新机QA30。     

新疆：变“输血”为“造血”

自2011年工业和信息化部下发援疆工作部署后，全国19个援疆省（市）经信委、无线电管理局积极贯彻落实，认真开展了设备援疆、技术援疆、资金援疆、人才援疆。大多省（市）与新疆受援地（州、市）无线电管理局开展了沟通对接、了解需求、策划项目等活动。截至2013年12月底，福建、浙江、湖南、江苏、上海、广东、安徽援疆项目已办结落地，部分省（市）的援疆项目正在实施过程中。     

信息化行业的QA和QC的区别和分工

通过在信息化行业中QA和QC的定义和区别,论述QA和QC的主要工作内容,对企业QA和QC部门的分工有一定的借鉴作用。     

The advent of MEMS in space

An overview of the MEMS activity at the French Space Agency (CNES) is presented. At present, MEMS are in the introduction phase and failure analysis and quality assurance (FA/QA) activities are underway for a large variety of MEMS technologies. This paper presents the CNES roadmap and methodology developed to assess the reliability of MEMS for space applications. The presented approach focuses, in particular, on the use of advanced analytical models, test vehicles, process control monitoring test structures and simulation tools to control and validate the quality of a technology. It also discusses the FA know-how and associated techniques acquired by CNES to observe, characterize, prepare and test in controlled environment MEMS processes. Finally, case studies illustrating the CNES MEMS FA/QA strategy are presented.     

装备软件质量保证的现状和思考

结合电子对抗装备软件的现状,提出了软件质量改进的方法、措施,指出软件的质量保证要在有效地建立和实施软件工程化规范的基础上,通过组织、目标、计划、实施、考核等覆盖全过程的软件质量活动才能得到真正的实现。     

接近零不合格过程的质量分析及控制探讨

该文对提高接近零不合格过程的质量分析和控制的准确性及效率进行探讨,提出对接近零不合格过程的质量分析首先应根据产品质量要求和过程能力要求选择合适的aσ,且要与接近零不合格过程的控制的程度相适应,然后利用传统的统计过程控翩(SPC)的方法对过程进行质量分析和控制,使过程处于受控状态或良好的受控状态,同时利用该状态时的不合格...     

中小软件项目中基于敏捷过程域控制的QA外包探索

软件的质量管理是控制软件品质乃至项目品质的重要手段,但企业在建设中小型软件项目时,极易受到条件的制约而无法控制项目的质量.将质量保证(QA)外包给第三方评估机构,通过实施SSTL设计搭建的轻载质量管理框架SQAF,约束质量管理过程中关键过程域,既能保证中小型软件项目运行的过程受控,又能避免重载质量体系对项目的繁琐制约.     

Design and implementation of an extended Kalman filter for thestate estimation of a permanent magnet synchronous motor

Practical considerations for implementing the discrete extended Kalman filter in real time with a digital signal processor are discussed. The system considered is a permanent magnet synchronous motor (PMSM) without a position sensor, and the extended Kalman filter is designed for the online estimation of the speed and rotor position by only using measurements of the motor voltages and currents. The algorithms developed to allow efficient computation of the filter are presented. The computational techniques used to simplify the filter equations and their implementation in fixed-point arithmetic are discussed. Simulation and experimental results are presented to demonstrate the feasibility of this estimation process     

SPC在电缆外护套挤出工艺中的应用

统计过程控制(statistic process control,SPC)与传统的产品控制方法不同,具有诸多优点,是一种科学有效的方法。以某电缆外护套挤出工艺为例,阐述了如何应用SPC技术来分析产品质量数据,实施SPC的工作程序及实施SPC之后的效果。以定量的数理统计方法评估工艺的控制能力,最后通过对生产过程连续监控保证产品质量的稳定性。     

Image information and visual quality.

Measurement of visual quality is of fundamental importance to numerous image and video processing applications. The goal of quality assessment (QA) research is to design algorithms that can automatically assess the quality of images or videos in a perceptually consistent manner. Image QA algorithms generally interpret image quality as fidelity or similarity with a "reference" or "perfect" image in some perceptual space. Such "full-reference" QA methods attempt to achieve consistency in quality prediction by modeling salient physiological and psychovisual features of the human visual system (HVS), or by signal fidelity measures. In this paper, we approach the image QA problem as an information fidelity problem. Specifically, we propose to quantify the loss of image information to the distortion process and explore the relationship between image information and visual quality. QA systems are invariably involved with judging the visual quality of "natural" images and videos that are meant for "human consumption." Researchers have developed sophisticated models to capture the statistics of such natural signals. Using these models, we previously presented an information fidelity criterion for image QA that related image quality with the amount of information shared between a reference and a distorted image. In this paper, we propose an image information measure that quantifies the information that is present in the reference image and how much of this reference information can be extracted from the distorted image. Combining these two quantities, we propose a visual information fidelity measure for image QA. We validate the performance of our algorithm with an extensive subjective study involving 779 images and show that our method outperforms recent state-of-the-art image QA algorithms by a sizeable margin in our simulations. The code and the data from the subjective study are available at the LIVE website.     

Performance evaluation of integrated services interworking: The ATM-DQDB case

Performance studies on LAN/MAN-BISDN interworking have mainly focused on the requirements of isochronous and connectionless services. In this paper we extend performance results to cover also the case of non-isochronous connection oriented (CO) services supported by the queued arbitrated (QA) mode of access of the DQDB protocol. Using this case we stress the more general issue of service integration impact on the interworking unit (IWU) architecture design in terms of protocol stacks and expected performance. We herein evaluate the performance of IWU architectures tailored to relay information in the lowest possible layer while implementing several service priority schemes and buffer management policies towards QoS objectives. The conditions under which the IWU design is efficient regarding performance, protocol complexity and implementation cost in this integrated services environment are identified.     

Emerging Dual‐Channel Transition‐Metal‐Oxide Quasiaerogels by Self‐Embedded Templating

The lack of precise control of particle sizes is the critical challenge in the assembly of 3D interconnected transition‐metal oxide (TMO) for newly‐emerging energy conversion devices. A self‐embedded templating strategy for preparing the TMO@carbon quasiaerogels (TMO@C‐QAs) is proposed. By mimicking an aerogel structure at a microscale, the TMO@C‐QA successfully assembles size‐controllable TMO nanoparticles into 3D interconnected structure with surface‐enriched carbon species. The morphological evolutions of intermediates verify that the self‐embedded Ostwald ripening templating approach is responsible for the dual‐channel TMO@C‐QA formation. The general self‐embedded templating strategy is easily extended to prepare various TMO@C‐QAs, including the Co₃O₄@C‐QA, Mn₃O₄@C‐QA, Fe₂O₃@C‐QA, and NiO@C‐QA. Benefiting from the unparalleled 3D interconnected network of aerogels, the Co₃O₄@C‐QA displays superior bifunctional catalytic activities for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), as well as high specific capacity and excellent long‐term stability for lithium‐ion battery (LIB) anode. A proof‐of‐concept battery‐powered electrolyzer with Co₃O₄@C‐QA cathode and anode powered by a full LIB with Co₃O₄@C‐QA anode is presented. The battery‐powered electrolyzer made of the state‐of‐the‐art TMOs can exhibit great competitive advantages due to its supreme multifunctional energy conversion performance for future water electrolysis.