What is the notation for a destruction occurrence?

What is the notation for a destruction occurrence?

• A. An X
• B. A circle
• C. A dash
• D. A question mark

Answer: (A)

Destruction is shown with an X because the symbol visually signals termination or removal. An X across an item or line quickly communicates that it is no longer present or active, which is exactly what destruction means in these diagrams. Circles often represent states or processes, dashes typically indicate continuation or connections, and question marks mark uncertainty. So the X stands out as the clear cue that the object has been destroyed.

Destruction is shown with an X because the symbol visually signals termination or removal. An X across an item or line quickly communicates that it is no longer present or active, which is exactly what destruction means in these diagrams. Circles often represent states or processes, dashes typically indicate continuation or connections, and question marks mark uncertainty. So the X stands out as the clear cue that the object has been destroyed.