Most large enterprises have a network of homegrown， legacy mainframe， and packaged applica

tions 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)

A. network

B. computers

C. data

D. functionality