An aggregation association is drawn using which symbol?
- A. A line which loops back on to the same table
- B. A small open diamond at the end of a line connecting two tables
- C. A small closed diamond at the end of a line connecting two tables
- D. A small closed triangle at the end of a line connecting two tables
Answer: B. A small open diamond at the end of a line connecting two tables
Explanation: Open diamond represents aggregation (weak relationship). Closed/Filled diamond represents composition (strong relationship).