The target layer (A)

Element layer (B)

Indicators (C)

Online Learning Student Satisfaction (A)

Teacher-related Factors (B1)

Teachers’ Teaching attitude (C11)

Teachers’ professional knowledge (C12)

Teachers’ Teaching Language Expression and Style (C13)

Organizational ability of teachers in Online Teaching (C14)

Teachers’ ability to teach via online broadcast (C15)

Curriculum Factors (B2)

Rationality of course hours (C21)

Innovative and substantial course content (C22)

Course Tasks and Nature (C23)

Improvement of Students’ Professional Ability by Course Content (C24)

Textbooks Selected for the Course (C25)

Online Learning Resources for the Course (C26)

Assessment Methods of Courses (C27)

Interaction-related Factors (B3)

Teachers’ preparation before class and reasonable assignment of learning tasks (C31)

Communication and interaction between teachers and students (C32)

Student-student Communication and Interaction (C33)

Division, Depth and Difficulty of Teaching (C34)

Teaching Methods Used in Online Teaching (C35)

Arrangement and Effect of Experimental Teaching Activities (C36)

Platform-related Factor (B4)

Operation of teaching Platform and related software (C41)

Flow Degree and Stability of Network Environment (C42)