Circle
Rectangle
Triangle
Start
End
Process
Output
Decision
Display
Document
Data
Database
Internal
Offline
Delay
Page
Input
Operation
Punchcard
Subroutine
Comment
Storage
Extract
Collate
Or
Junction
Keyring
Tape
Preparation
Endpoint
Roll
Group
Swimlane rows
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Swimlane cols
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Swimlane mix
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Does user remember his password?
XOR
User forgets his password
Send an E-mail with new password
E-mail sent
User remembers his password
User types in login and password
Data typed in
Proof completion and correctness
XOR
User logged in
Complete logging in
Data is correct
Data is not correct
System
Database
Visitor enters the website
Logged in user?
XOR
User is logged in
User is not logged in
Registered user?
XOR
User is registered
User is not registered
XOR
User types in needed data
Data typed in
Proof completion and correctness
System
Database
XOR
Data is not correct
Data is correct
AND
Write account data into database
Data writing done
Database
Send activation e-mail
Activation e-mail sent
User activates his account
Account activated
Grid step