Task
A Task is an atomic activity that is included within a Process. A Task is used when the work in the Process is not broken down to a finer level of Process Model detail. Generally, an end-user and/or an application are used to perform the Task when it is executed.
A Task object shares the same shape as the Sub-Process, which is a rectangle that has rounded corners (see Figure).
BPMN specifies four (4) types of markers for Task: a Loop Marker, a Multiple Instance Marker for parallel instances, a Multiple Instance Marker for sequential instances and a Compensation Marker. A Task may have one or two of these markers (see Figure).
