软件部分由针对不同模块所要实现不同功能而设计的多个子程序而构成。
The part of the software realized with the different function to different module.
服务的其他实现决策不同于业务功能包括：服务的安全、管理和监视。
Other realization decisions for services other than business functionality include: security, management and monitoring of services.
通过实现不同的功能，银行分散了风险——就是说不要把所有的鸡蛋放在一只特定的金融篮子里面。
By taking on different functions, a bank spreads its risk - it is not putting all its eggs in one particular financial basket.
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