Customizing the metamodel : Diagrams: Creating and modifying : Creating roadmap-style diagrams : Property set : Dependency
  
Dependency
This should be defined in the usual manner for a representationally consistent definition:
DEFINITION " Roadmap Dependency"
{
Browser { OMITKEY }

PROPERTY "KeyGUID"{ Key EDIT TEXT ASGUID LENGTH 80 READONLY INVISIBLE BROWSER { HIDE }}

CHAPTER "Milestones"
PROPERTY "From Project Milestone"{ EDIT OneOf "Roadmap Project Milestone" RELATED BY "has parent of" LABEL "From" READONLY HELP "Set on Roadmap" FROMDEF}
PROPERTY "To Project Milestone"{ EDIT OneOf "Roadmap Project Milestone" RELATED BY "has child of" LABEL "To" READONLY HELP "Set on Roadmap" TODEF}
PROPERTY "To Line End"{ EDIT TEXT ListOnly LIST "LineEnds" DEFAULT "LineEnd1" LENGTH 30 INVISIBLE TOTAG}
}

Symbol "Dependency"
{
REPRESENTS EXPLICIT RELATIONSHIP " Roadmap Dependency"
DEPICT LIKE "Generic Line"
DEPICTIONS { MENU "images\lineend1.bmp" }
ASSIGN TO "My Roadmap"
}