Admin sends a message about missing item

Manager takes the order after the submission

Admin is collecting an order

Shop admin is waiting for the information from the buyer

Show boundaries, place elements outside those boundaries, and specify data flows

After the gateways each branch is determined by the downstream condition

In the parallel gateway, all paths leaving the gateway are executed

After the gateways, a condition defines the activities that may be performed at one time

The sequence flow defines what is parallel

Inclusive gateway

Exclusive gateway

I'll show it with event element

Parallel gateway

An event is a piece of work performed within a business process

An event is something that happens during a business process. The types are Start, End and Intermediate.

An event is an object in time. The types are: Start, Duration and Intermediate

An event is an appointment for a meeting, presentation, or training for an employee of a company. The types are: Message, Timer and Error Handling

Constraints

All of the above

Assumptions

Risks

Use Case diagram

All above

Context diagram

Process modeling

Process diagra

Context diagram

Functional decomposition

Use case diagram

All of the above

Processes

Work items/tasks

Solution components/features