Distribution and heterogeneity are main characteristics of the logistics delivery decision support system in e - commerce 分布性和异构性是电子商务环境下物流配送决策支持系统的主要特点。
However web site is a great heterogeneous database . limited sharing of resources becomes a question which to be solved 然而，由于web站点之间的异构性，资源的有限共享成为急需解决的问题。
However , the variety of network technology and heterogeneity of platform make distributed applications difficult 然而，网络技术发展的多样性以及运行平台的异构性给分布式应用带来很大的困难。
These differences are shown to be the consequences of autonomy and heterogeneity of database nodes in database grid 这些不同主要是由数据库网格结点在设计通信和执行方面异质异构性和自治性造成的。
Nowadays , distribution flexibility and heterogeneity has become the prominent characters of the modern computing environments 当今，分布性、可扩展性和异构性已经成为现代企业计算环境的显著特征。
And at the same time , distribution , inter - operation and heterogeneity have become the features of today ' s network 在网络发展的同时，分布性、可操作性和异构性也已经成为了现代网络环境的显著特征。
Then , isomer of web pages cause how to identify required information from varied web pages is a big difficulty 其次, web页面的异构性使如何在各式各样的web页面里准确识别所需信息点成为一个较大的难点。
Due to the large amount of heterogeneous data on the web , a standard format of data representation and data exchange is badly needed 由于网络数据的异种性和异构性,就急需一套统一的数据表式和数据交换的标准。
With the rapid development of network , the scale and complexity are increasing and the heterogeneous is much higher than before 近几年来,计算机网络发展异常迅猛。网络规模不断扩大,复杂性不断增加,网络的异构性越来越高。
How to solves the problems such as data exchange 、 communion difficulty and data redunance , which due to the heterogeneous system in a enterprise 如何解决企业内部系统异构性所带来的数据交换、共享困难,数据冗余度大等问题
