What is a Signal Intermediate Throw Event in BPMN?

A Signal Intermediate Throw Event broadcasts a signal to all listening processes during execution. Unlike messages, signals have no specific target-all processes waiting for that signal name respond.

When should I use a Signal Intermediate Throw Event?

Use Signal Intermediate Throw Events when an event should notify multiple unrelated processes-phase completions, status changes, business events. They enable loose coupling and one-to-many coordination.

How is the Signal Intermediate Throw Event different from related elements?

Signal Throw Events broadcast to all listeners (one-to-many), while Message Throw Events target specific recipients (one-to-one). Signals enable loose coupling; messages enable precise coordination.

What is a Signal Intermediate Throw Event in BPMN?

A Signal Intermediate Throw Event broadcasts a signal to all listening processes during execution. Unlike messages, signals have no specific target-all processes waiting for that signal name respond.

When should I use a Signal Intermediate Throw Event?

Use Signal Intermediate Throw Events when an event should notify multiple unrelated processes-phase completions, status changes, business events. They enable loose coupling and one-to-many coordination.

How is the Signal Intermediate Throw Event different from related elements?

Signal Throw Events broadcast to all listeners (one-to-many), while Message Throw Events target specific recipients (one-to-one). Signals enable loose coupling; messages enable precise coordination.

eventssignal trigger

Signal Intermediate Throw Event

A Signal Intermediate Throw Event broadcasts a signal to all listening processes during execution. It enables one-to-many communication where multiple processes and instances can respond to the same signal.

What is a Signal Intermediate Throw Event?

A Signal Intermediate Throw Event broadcasts a named signal that reaches all processes listening for that signal name. The process continues execution while the signal fans out to multiple potential receivers.

Visual Representation

The event shows a double-line circle containing a filled/solid triangle pointing upward. The filled triangle indicates throwing/sending direction.

Key Characteristics

Broadcast mechanism: One signal reaches all listeners
Fire-and-forget: Process continues immediately; no response expected
Cross-process scope: Signals reach listeners in any process definition
No correlation: Unlike messages, signals don't target specific instances

Common Use Cases

Phase Completion Broadcast

Broadcast "DataImportComplete" signal so all dependent processes can proceed with their data processing.

System-Wide State Change

Signal "MaintenanceMode" to pause processing across all active instances simultaneously.

Event Notification

Broadcast business events like "NewProductLaunched" for any interested process to handle.

Signal Intermediate Throw Event

What is a Signal Intermediate Throw Event?

Visual Representation

Key Characteristics

Common Use Cases

Phase Completion Broadcast

System-Wide State Change

Event Notification

Frequently Asked Questions

Related BPMN Elements

Signal Catch

Signal End

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