The principles of transient design that are concerned with keeping users informed of the purpose of an application and of the scope and meaning of the available choices become even more critical with daemonic applications.

• 程序的意图和用户可获得的选择范围和含义必须要告知用户，这是暂时应用设计中的一个原则，这个原则对于后台应用来说更为重要。