当系统的状况改变时，这些模型传递重要的系统特性，以预测系统质量和对具体属性的影响。
These models communicate key system characteristics to predict system qualities and the effect on specific properties when aspects of the system are changed.
模型被用在很多的方面：预期系统的质量，当系统的某些方面变化时推理特定的属性，和为各种涉众沟通关键的系统特征。
Models are used in many ways: to predict system qualities, reason about specific properties when aspects of the system are changed, and communicate key system characteristics to various stakeholders.
本文提出了质量评价的属性数学模型。
In this paper, attribute mathematical model for quality assessment is presented.
性能属性在保证数据仓库模型建设和数据仓库系统建设的质量中扮演关键角色。
Performance property plays a vital role in guaranteeing the quality of data warehouse information model and system design.
根据属性识别理论，建立了既有钢筋混凝土构件质量综合评判的变权模型，对既有钢筋混凝土构件进行耐久性评估。
Based on attribute identification theory, the comprehensive evaluation model of variable weight for quality of existing R. C. structures is established to evaluate the durability of the structures.
针对数据库数据质量评价问题，给出了一个属性粒度的质量评价模型，定义了正确性评价指标。
The paper presents a data quality assess model for relational database and defines the accuracy metric at attribute level.
将空间数据库、属性数据库和应用模型库通过内部和外部接口集成一起，对秭归县的生态环境质量进行了定量评价。
Spatial database, attributive database and model base were integrated by internal and external interfaces and applied in quantitative evaluation of eco environmental quality of Zigui County.
模型质量将受到网格密度和生成方法、材料属性分配和应用边界条件等诸多因素的影响。
The model predictions will be influenced by the mesh density and generation method, the material property assignation and the applied boundary conditions.
近年来提出的属性识别理论模型已在环境质量评价中有所应用。
Recently the attribute recognition theoretical model has been applied to environmental quality evaluation.
在本文中，首次提出了根据评定项权分配评定项总分的属性数据质量综合评价模型。
In this paper, we present a compositive evaluation model that could distribute total score of each item according to its own power for the first time.
该模型基于用户感知的质量，以总质量作为中心结点，可以直接测量的质量子属性为网络根结点。
Applying the Bayesian network, the model was developed, and the overall quality was presented as the central node with the sub-characters as the root nodes.
应用该模型对液压挖掘机质量进行评价，对挖掘机的综合属性值进行排序和择优，结果与实际相符。
It also applies the model to appraise the quality of hydraulic excavator, and sorts and selects the synthetic attribution of hydraulic excavator. The result consists with practice.
将关键属性作为SOM神经模型的输入，提高客户细分质量。
Key attributes are used as inputs for learning by SOM neural network so as to obtain better clustering quality.
在建立测评指标体系的基础上，将属性综合测度模型应用于旅游环境质量的测评体系中，给出了一种切实可行的评价方法。
Based on the index system of assessment, the attribute synthetic assessment system is applied to the tourist environment assessment. A practicable assessment method is given.
在建立测评指标体系的基础上，将属性综合测度模型应用于旅游环境质量的测评体系中，给出了一种切实可行的评价方法。
Based on the index system of assessment, the attribute synthetic assessment system is applied to the tourist environment assessment. A practicable assessment method is given.
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