For example, there is an access control policy that allows all users that fulfill the customer Service Representative role to perform customer management operations.

例如，存在这样一个访问控制策略，其允许担当客户服务代表角色的所有用户执行客户管理操作。

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Perhaps you need to access an existing inventory control system, a legacy customer database, or a mainframe-based security access control service.

或许您需要访问现有的库存控制系统、旧的客户数据库或基于大型机的安全性访问控制服务。

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Access control may also need to be customized to the needs of a large enterprise customer.

需要对于大企业客户的需求定制访问控制。

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The buying decision and access to information about how to make that decision are now controlled by the customer, leaving sellers with control of just the product.

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