Table 2.

Use case description of teaching resources uploaded by teachers.

Case number	SCHUAN01 priority middle edition 1.0
Case name	Upload teaching resources
Brief description	Teachers upload teaching resources to a course directory
Basic/typical process	1. The teacher enters the page of uploading teaching resources
	2. Select the course name of the resource
	3. Select the type of data: Type: Word document, video, PPT courseware, audio file
	4. Click upload
Optional/abnormal process	Teaching resources uploaded successfully
Results of enforcement	Click upload to display the following contents:
	Name, type and upload time of uploaded data