Sequence (Sequential) for indicating a plurality of operations sequentially processed. For example, the ten operations to deal with a person
Parallel (Parallel) for representing a plurality of processing operations simultaneously. Such operation is given to two-person operation, two parallel processing will
Concurrent (Concurrent) is used to indicate a plurality of operating portions and allowed into order processing. If a person to handle, that is, the order of processing concurrent operations separately. Two people, then that is parallel processing