Total And Partial Participation¶
Total Participation¶
Total Participation indicates that every entity in this set participates in the relationship set. It is indicated with a double line
Partial Participation¶
Partial Participation is observed when some entities don't necessarily participate in any relationship in the relationship set. These can be represented with just a single line
Example¶
Each soldier serves in an army, and each army must have soldiers in it. Additionally, the soldier-army relation is many-to-one