The most common temporary Visas are Tourist Visas, Student Visas and work sponsored Visas. There are quite complex rules that relate to these and care needs to be taken not to breach the conditions of the Visa. Many people wish to move from a temporary to a permanent Visa. To make this transition it is important that the Department is confident that the conditions of any temporary Visa that the applicant is currently on has not been breached. This is particularly relevant for students.
If you have any queries about the conditions that must be satisfied in order to comply with your Visa, then again, it is well worthwhile to make an inquiry about that.