Course Requisites: Definition of Terms

Prerequisite
A course/condition* that must be completed/met prior to enrollment in another specified course. Enrollment in prerequisite course/condition* groupings is enforced by SOLAR. An unmet or non-completed prerequisite course/condition* will bar a student’s enrollment in a course.
Corequisite
A course/condition* for which concurrent enrollment in another affiliated course is mandatory. Corequisite courses must always be offered in the same semester (usually lecture/lab). Students are required to enroll in corequisite course groupings at the same time through SOLAR. NOTE: Corequisite courses that are recommended should be designated as “Recommended Corequisites.” 
Multiple Component Course
A component course is a graded lecture class that has a required, non-graded, 0-unit lab or discussion. To enroll in component classes, students enter the class number of the lab or discussion and the system will automatically enroll them in the lecture class.
Preparatory
A course/condition* that is recommended to be completed/met prior to enrollment in another course.

*Examples of prerequisite “conditions” include “class level”, a specific examination score, a specified passing grade, etc.