This sequence diagram illustrates how a product is scanned and priced.

Diagram Node Summary
aBtn	Object
initial	Object
Activation1	Sequence: 1
Activation11	Sequence: 1.4
prod	Object
Activation2	Sequence: 1.1
detail	Object
Activation3	Sequence: 1.2
currentSale	Object
Activation4	Sequence: 1.3
Activation12	Sequence: 1.4.1

Number	Type	Description	Node
1	Message	aBtn initial Operation: scan():void	Activation1
1.1	Message	initial prod Operation: getDescription():String	Activation2
1.2	Message	initial detail Operation: (ProductDesc) Arguments: prod creationMessage: true Return: detail return arrow	Activation3
1.3	Message	initial currentSale Operation: addSaleDetail(CashSaleDetail):void Arguments: detail	Activation4
1.4	Self Message	initial Operation: addDetailToTable():void	Activation11
1.4.1	Message	initial currentSale Operation: getDetailList():Vector	Activation12

Stereotype:

actor

All Outgoing Links
Message	to Object initial Sequence Number: 1

All Outgoing Links
Message	to Object currentSale Sequence Number: 1.3
Message	to Object currentSale Sequence Number: 1.4.1
Message	to Object detail Sequence Number: 1.2
Message	to Object prod Sequence Number: 1.1
Self Message	to Object initial Sequence Number: 1.4
Dependency	to Class POSFrame (in Package Diagram user_interface)

All Outgoing Links
Dependency	to Class ProductDesc (in Package Diagram problem_domain)

created:

true

All Outgoing Links
Dependency	to Class CashSaleDetail (in Package Diagram problem_domain)

All Outgoing Links
Dependency	to Class CashSale (in Package Diagram problem_domain)