软件需求开发是指从情况收集、分析和评价到编写文档、评审等一系列产生需求的活动，分为获取情况、分

在网络管理中要防止各种安全威胁。在SNMP v3中，无法预防的安全威胁是 （70） 

Most large enterprises have a network of homegrown， legacy mainframe， and packaged applications that need to share information and （71 ） . Unfortunately， most of these systems are proprietary to the vendor， and were written in different programming languages with different data structures. Integration （72 ） was developed to allow （73 ） systems to communicate. Enterprise Application Integration (EAI) is used to integrate applications inside the （ 74 ） . B2B integration extends integration beyond the enterprise to customers， partners， and suppliers. The emerging Web Services （ 75 ） goes even further by defining a single set of standards for integration both inside and outside the enterprise. As a result， vendors in EAI and B2B markets will be profoundly affected by Web Services.(71)

(72)

(73)