That means that they should include the abstract keyword optionally a visibility modifier the function keyword and an optional list of arguments in parentheses .

这意味着，抽象方法应包括abstract关键字、可选的 可见度修改符、function关键字，以及圆括号内可选的参数 列表。

LBAC can be used to enforce Siebel access control based on records visibility for a user that is based on organization position and a membership to a list or group .

根据 列表或组的结构、位置或从属关系，LBAC可用于增强对用户 可见记录的Siebel访问控制。