What shape is used in a process map to indicate the beginning or end of a process?

The shape used in a process map to indicate the beginning or end of a process is an oval. This is commonly used in flowcharting conventions to clearly mark the start and finish points of a process. The oval, often referred to as a terminator shape, distinguishes these critical points from other elements like steps or decisions represented by different shapes. In a process map, understanding where a process begins and ends is essential for clarity and effective communication; hence, the use of an oval is standardized to universally convey this specific information.