[Retracted] Building English Audio-Visual and Oral Mobile Teaching System Based on Virtual Augmented Reality Technology

Table 3

Description of teacher audit cases.

Use case name	Administrator audit teacher
Range	Application of teacher audit module
Level	User purpose
Major participants	Administrators
Relevant personnel and concerns	Focus
	Hope can get the login permission correctly.
	It is hoped that the relevant data of all approved teachers will be correctly stored in the database
Preconditions	The user has registered a user as a teacher, and the teacher is waiting for approval