Often, a user of the IT system (such as a bank teller) is aware of the coarse-grained services in the business model.
IT 系统的用户（如银行出纳）经常知道业务模型中的粗粒度服务。
2
Betty Rogers, a teller at the First National bank, is explaining the bank's computer system to one of her customers.
第一国民银行的出纳员贝蒂·罗杰斯正在向一位顾客解释银行的计算机系统。
3
Identity authentication as an important means of prevention is the first security system barriers, strengthening teller control, a clear correlation responsibility is of great significance.