【摘要】 介绍数据柔性、数据柔性分析等相关概念。通过引入元数据,提出并建立数据柔性的层次模型和柔性数据的访问模型,以解决用户数据结构如何适应转化的关键问题。在数据柔性分析与建模中,提出以元数据为核心的软件设计方法,并将该方法和所建立的数据柔性理论应用于柔性软件信息系统的开发和软件工程实践中。更多还原

【Abstract】 New concepts such as data flexibility,data flexibility analysis method,and some other related ones are presented.To well solve the key problem of how to adapt the variation conversion for the user’s data structure,a Data Flexibility Hierarchical Model(DFHM) and a Flexible Data Access Model(FDAM) are proposed and established by introducing meta-data.During the analysis of data flexibility and model building,a new software design method is proposed,for which meta-data is the kernel.The presented data flexibility theory and related method are successfully applied into a series of flexible software development for the information system and adopted by the software engineering practice,which gain excellent social and economic benefits.更多还原