Enums

enum Activation → string

Activate/deactivate a message recipient

case activate → '+'
case deactivate → '-'
enum Arrow → string

Message arrows

case dottedLine → '-->'
case dottedLineArrowhead → '-->>'
case dottedLineAsync → '--)'
case dottedLineCross → '--x'
case solidLine → '->'
case solidLineArrowhead → '->>'
case solidLineAsync → '-)'
case solidLineCross → '-x'
enum Destroy

Destroy one of the participants after a message

case recipient
case sender
enum ParticipantType

Defines the type of participant

case boundary
case collections
case control
case database
case entity
enum Position → string

Defines the position of a note

case leftOf → 'left of'
case over → 'over'
case rightOf → 'right of'