例如，如果用例需要用户身份标识，就必须清楚何时要求身份标识以及要求什么许可。
For example, if the use case requires user identification, it must be clear when the identification is requested and what authorization is required.
对用户身份标识进行加密、隐秘存储与认证是软件等版权保护所必须首先经历的步骤。
The encryption, secret storage, and authentication of user-identity-identifier are the necessary steps in the copyright protection for software, and so on.
必须有一种机制能够支持惟一的用户标识和身份验证。
There must be a mechanism in place to support unique user identification and authentication.
应用推荐