1.01.01.01.0InitialActivityObjectDecisionVertical Fork/joinHorizontal Fork/joinFlower EndEndSignal ReceiptSignal SendingActivity partitionInput/OutputPinsActivity Diagram (UML)AdminSIS SystemTeacherStudentUser: <users>LoginAdd subjectsAdd studentsLogin errorEnter to virtual classroom interfaceLive class<schedule>Schedule classAttendanceSend noticeAttend classReceive notice[Login failed][Loginsuccess][Admin tasks]AA