@startuml left to right direction actor Admin as "管理员" usecase "管理学员信息" as ManageStudentInfo usecase "管理教练信息" as ManageCoachInfo usecase "管理网上约车" as ManageOnlineBooking usecase "管理约考信息" as ManageExamInfo usecase "管理培训信息" as ManageTrainingInfo usecase "管理培训记录" as ManageTrainingRecords usecase "管理缴费信息" as ManagePaymentInfo usecase "管理成绩信息" as ManageGradesInfo usecase "查看留言反馈" as ViewFeedback Admin --> ManageStudentInfo Admin --> ManageCoachInfo Admin --> ManageOnlineBooking Admin --> ManageExamInfo Admin --> ManageTrainingInfo Admin --> ManageTrainingRecords Admin --> ManagePaymentInfo Admin --> ManageGradesInfo Admin --> ViewFeedback @enduml