draw a sysML block defintition diagram (with at least three levels of decomposition) using this scenario:

Professors (including Full Professors and Adjunct Professors) use Blackboard to create and grade assignments, submit assignment grades, and calculate and submit course letter grades. Students submit assignments and check their grades and feedback. Administrators use Blackboard to obtain final course letter grades, calculate GPAs and track student progress toward degrees. Blackboard verifies that all types of users have appropriate access to functionality and data based on their roles and access rights.