Each semester, a number of courses (but not all courses) are offered. Any given course might or might not be offered and if offered, could be offered a number of times in the semester. Each course offering is uniquely identified by a CRN. Other information regarding the course offering includes: cycle, starting time, duration and semester.
Create and E-R diagram following the crows foot notation. Identify max and min cardinality. Resolve any many- to many relationshops.