Research and Application of Computer Management of the Test Chemical Products Quality Analysis

According to the regulations of the People＇s Republic of China national standard as the basis, on the part of chemical industry product quality inspection and analysis of the implementation of computer management has developed a set of software applications, the software in chemical products quality inspection and analysis of the means of management is an innovation. The software functions, can automatically process data, judge the product grade, quality analysis, objective and fair, convenient, fast, accurate, stable, practical, and easy to popularize.

Prediction Models for Total Customer Satisfaction Based on the ISO/IEC9126 System Quality Model

The profitability of the system product is decided on the sales of the product. Furthermore, a customer satisfaction for products quality and a price have a big influence on the sales of the product. It spends limited financial resources effectively to raise the profitability of the system product, and it is necessary to realize the high quality product correspond to the customer needs as much as possible. There may be close relationship between cost of a product and an expense to implement the individual inherent attribute of system product. For the purpose of improvement of the customer satisfaction for quality of system product, the method of quantitative quality requirement and evaluation based on the ISO/IEC9126 quality model that includes six quality characteristics is widely recognized. However, independency among each quality characteristic has not been sure and the suitability of method for quality requirement of system product by using these six quality characteristics could not certified statistically. In the precedent study, introduced the requirements definition method for the quality of system product based on the system quality model defined in ISO/IEC9126 and proposed the effectiveness of it statistically. This study have measured the customer satisfaction for the system quality from the viewpoint of six quality characteristics quantitatively and confirmed the effectiveness of the technique to evaluate. In this study, we have confirmed the relationship between inherent attributes of the product and quantitative result of a measured value of total customer satisfaction from the view point of six quality characteristics statistically. This study performed the trial to clarify the relations with the inherent attributes that quantitative result of a measurement of the customer satisfaction based on six quality characteristics by the quality model of ISO/IEC9126. In addition, this study performed the development of the prediction model to estimate the total customer satisfaction for the system product from the view point of inherent attribute of the product. In this paper, we propose the effectiveness of application of the estimated prediction model and possibility of improvement of the total customer satisfaction of a system product.

Verification of Quality Requirement Method Based on the SQuaRE System Quality Model

For a purpose of suitable system product development and acquisition successfully, it is extremely important to specify the quality requirement for target system during system design phase, and developing or selecting a most suitable product finally from among the alternative candidate products. However, the quality requirements analysis is a very difficult matter because it is non-formulaic and demands much of product customer’s technical perceptiveness. Traditionally, analysis of quality requirements of a product has been conducted through questionnaires or interviews with customers based on survey investigator’s personal experience. This kind of lack of structure and incompleteness in the traditional approach introduced missing requirements and errors in prioritizing requirements to implement in the requirement analysis of a product. On the other hand, we have been working on developing the techniques (SQuaRE) for quality requirements and evaluation for system and software product for a long time in ISO/IECJTC1/SC7WG 6. For the purpose of specify the quality requirement of system product, the method of quantitative quality requirement definitions based on ISO/IEC9126 [1] quality model that includes six characteristics is widely recognized. However, independency among each quality characteristic is not sure and the suitability of method by using these six quality characteristics for quality requirement is not certified statistically. In this paper, we propose the concept of quality requirements definition method based on the SQuaRE quality models define in ISO/IEC25030 [2,3]. Also, this paper proposes the result of verification about effectiveness of quantitative quality requirement definition approach from the view point of six quality characteristics described in ISO/IEC9126.

Three Dimensional Integrated Value Models Based on ISO/IEC9126 System Quality Model

When introduce a distribution system, it is necessary performing an assessment of system quality generally to evaluate the characteristic of system from candidates targeted product for the purchase and evaluating the superiority and inferiority. The general quality assessment for the system is performed by the integration test based on the quality requirements of the customer till now. But, it is very difficult to perform the integration test completely, because the system testing may depend on the individual person’s high skill and experiences. Recently, the method of the quantitative quality requirements and evaluation based on the ISO/IEC9126 quality model is widely recognized for the purpose of a quality evaluation and improvement of the system product. In the precedent study, I have performed the confirmation of the method of evaluation for the system quality from the viewpoint of six quality characteristics included in the quality model defined in ISO/IEC9126, and the effectiveness of whose quality model could have confirmed quantitatively and statistically. However, it is very difficult to assess superiority and inferiority of the system totally even if evaluating the quality of the distribution system from the viewpoint of six quality characteristics for a customer individually. Therefore, if we could display total quality of the target system visually, we could evaluate and compare the total quality of system objectively and intuitively. Based on these assumptions, in this paper, we propose the concept and effectiveness of the “Three Dimensional Integrated Value Model” based on the result of precedent study about six quality characteristics.

基于志愿观测船舶和浮标数据的SST日产品质量评价研究

选用浮标、志愿观测船舶(VOS)数据作为验证数据对MODIS Aqua,MODIS Terra,AVHRR-OI,OSTIA和RTG五种SST日产品进行了时相差异、近海SST偏差和SST偏差区域整体差异分析的质量评价,以期为日产品的后续应用提供依据。结果表明:不同分析方案得到结论基本一致,在时相差异方面,各季节及年度分析显示各日产品优劣特性相近,其中AVHRR-OI最优(年数据分析回归系数为0.973 6,R2为0.976 0,RMSE为0.71℃),RTG、MODIS Aqua和MODIS Terra次之,OSTIA最差(年数据分析回归系数为0.945 4,R2为0.943 7,RMSE为1.08℃);在近海区域,AVHRR-OI比其他日产品能更真实地反映海表温度状况,OSTIA最差(二者Grade分别为30和13);在海洋表面区域整体特性方面,AVHRR-OI日产品质量在研究区海域存在更少的高正值和低负值,且均值和RMSE也更理想(最低仅分别为0.40和0.59℃);而RTG和OSTIA则差于AVHRR-OI。

软件质量的定量评定方法

探讨了软件质量评价在精确评定和控制软件质量中的意义，介绍了软件质量评价的相关标准，完整地描述了规范化的软件质量评价过程，提出了开发评价工具辅助评价人员实施软件质量评价的设想。

浅谈软件质量度量和软件产品评价

软件质量度量和软件产品评价系列标准是国际标准化组织ISO/IECJTC1近年来在软件工程标准方面的研究重点之一 ,对于通过量化手段进行软件产品的度量和评价 ,规范软件产品的质量管理 ,这两个系列标准提供了一条可以参考的实施途径。本文在多年跟踪研究国际上软件工程标准和制定软件工程国家标准的基础上 ,对ISO/IECJTC1近年推出的ISO/IEC 912 6和ISO/IEC14 5 98系列 ,以及正在研制的ISO/IEC2 5 0 0 0系列标准进行综合介绍。

软件产品质量保证过程度量的实用准则

文章首先指出定量软件工程是科学管理软件开发过程可见性的重要因素，接着介绍有关软件产品缺陷的几个基本概念以及有关软件产品质量测量和监控的主要机制。然后针对软件产品缺陷的注入、发现和修订等控制过程，基于应用SPC技术控制软件质量的实践，提出了六条关于软件产品质量保证过程控制的实用准则。

一个实用的软件质量评估模型

定义了一个实用软件质量评估模型,该模型包括两维：软件产品类型维和软件开发阶段维。该模型用于软件产品需求的定义、软件产品测试目标和计划的定义以及软件产品质量的评估。

吉林省林地立地质量评价及生产潜力研究

依据一类清查的标准木、样木和样地数据,构建主要树种(组)树高曲线,编制立地形表,用地形和土壤因子拟合立地形估测模型。以此,基于吉林省二类调查数据库,估测全省小班立地形,得到立地质量等级及分布。同时根据全省现实林分状况,综合确定各立地质量等级林地的生产潜力,由此对比分析现实与潜在生产力。结果表明:1)基于清查资料构建的立地形估测模型,经检验,均达到显著相关水平,可用于立地质量的评价;2)吉林省林地质量较好,林地质量等级为好和中等的分别占31.03%和66.00%,合计高达97.03%;3)全省现实生产力为潜在生产力的56.65%,仅7.20%的森林达到林地生产潜力水平,森林生产力仍有较大可提高性;4)基于一类清查和二类调查数据库的立地质量评价和生产潜力测算的方法可靠,具有可推广性。

测控软件质量的灰色模糊评价

针对测控类型软件应用环境的特殊性,提出了该类行业应用软件的一种灰色模糊评价方法。结合ISO/IEC质量模型和测控类型软件技术规范,探索了测控类型软件的指标模型,构造使质量属性仅隶属相邻质量等级的白化权函数进行评分值的灰色聚类。采用层次分析法进行权值设置,基于模糊方法实施综合评价,既增强了评价过程的客观性,又能综合不同专家的主观经验知识。应用实例表明,提出的方法可对测控类型软件进行合理的质量评价,并对其他行业应用软件具有推广意义。

基于模糊评价方法的新产品开发过程可靠性度量

针对新产品开发(new product development,NPD)过程难以获得所需的可靠性数据的问题,利用模糊打分法获取所需的可靠性数据。基于IDEF0(Integrated Definition for Function Modeling)建模的基础上,以模糊评价法为工具,构造了基于专家经验的模糊影响矩阵,以"输出"的质量作为过程的可靠性,在此基础上对新产品开发过程的可靠性作出评价。仿真结果表明本文提出的方法不仅可以有效地对过程可靠性作出评价,可以从定量的角度确定影响新产品开发过程可靠性的关键因素。

航空CFD软件可信度评价指标体系研究进展

按照CFD软件模拟的流速范围、流动特征对CFD软件的可信属性进行划分,形成亚、跨、超、高超流动模拟指标以及所对应的流动特性模拟能力指标,得到CFD软件可信度评价指标;并结合所对应的指标设计出基准级、部件级和系统级三级度量元,制定出CFD软件可信度评价准则和评价方法,建立起一套可用于评价航空CFD软件可信度的评价流程和评价体系。

基于多神经网络结构的常压塔侧线产品质量软测量

根据常压塔的原油进料及产品多变 ,提出采用多神经网络结构建立侧线产品质量软测量模型。利用基于马氏距离的数据分类技术 ,对输入样本分类。利用产品质量化验分析值 ,对软测量模型进行校正。实际应用表明多神经网络结构的软测量精度高。

动物源性饲料产品的卫生质量鉴定指标及其控制措施

本文从理化性质、化学污染物和微生物污染三个方面论述了动物源性饲料产品的卫生质量鉴定指标。文章对各项主要鉴定指标的意义、限量标准和控制措施作了较为详细的阐述。

弹载软件质量模型的研究

弹载软件的质量直接关系到武器系统需求指标实现的效率,因此,开展弹载软件质量模型的研究,对弹载软件发展具有重要的意义。本文针对弹载软件的特点、测试需求和软件质量度量标准,建立了适合于弹载软件质量特性、子特性和度量元的模型。并以某弹载飞控软件为例,运用建立的模型将质量子特性和动态测试建立关系,完成软件质量度量评价。该项研究为弹载软件质量评估提供了理论和应用基础。

电子产品测量误差及数据处理的探讨

简述了电子产品的性能参数测量值在测量时需要考虑的几个关键因素,探讨了测量中如何提高测量的精度及准确性,使测量值与被测产品的性能真值更加接近的问题,使检验工作更加准确无误。

基于测量数据的测度和软件质量评估方法研究

软件测试是提高软件可靠性最有效、最直接的方法之一。详细阐述了在测试过程中基于测试需求和用例设计执行的分阶段量化数据的技术,探讨了测度和软件质量的评估方法。

C^3l系统软件质量保障技术研究

针对C^3I 软件系统设计实现中所存在的问题,文章重点对软件质量保障方法进行了分析研究,同时提出一种简化任务评审阶段的软件质量综合保障建议。对从事C^3I 系统工程软件质量保障的人员可供参考。

六指标MOOD度量网络软件尺度因子拓扑优化模型

针对复杂网络环境下软件质量测评技术的特点,基于最新计算机网络软件质量管理理论,提出MOOD度量方法对软件质量进行体系测评,定义了六指标体系算法作为软件评估度量体系,首次对Mc-Call模型、Boehm模型和ISO/IEC 9126模型3种典型的计算机软件质量优化模型进行系统结构拓扑和测评误差分析,并提出采用WAF尺度因子对结果拓扑进行评价。仿真结果表明,3种优化模型误差率都得到有效降低,趋于0.01,比传统度量方法误差降低23%。研究成果为软件质量管理提供了有效的理论依据。