diff --git a/Automation.md b/Automation.md
index 9a782e4..c2daa20 100644
--- a/Automation.md
+++ b/Automation.md
@@ -21,6 +21,15 @@
 ### Based on attribute class
 ![Screenshot from 2022-06-09 00-54-50](https://user-images.githubusercontent.com/8220420/172684648-e3a38f4a-42f9-43bd-9a58-7c23ff2d4329.jpg)
 
+## Triggers
+### User action
+- triggered from context menu (could choose several modes, e.g. context, editor etc, available modes could be configured by mixin, by default only context is available).
+- calls Automation Service api by special action handler.
+### Database trigger
+- has one trigger catching database transactions
+- finds all automation objects for transaction class (automation target class)
+- checks what automations are applicable for object
+- calls Automation Service api to execute commands
 
 # Issues
 One automation item can contain one trigger, but several actions to perform on it.