@gmf(foo="bar")
@namespace(uri="casemodel", prefix="casemodel")
package caseModel;

@gmf.diagram(foo="bar")
class CaseModel {
  val Root[1] root;
}

abstract class CaseNode {
  id attr String[1] name;
  @gmf.link
  val Member[*] members;
}

@gmf.node(label="name", figure="rectangle", border.width="2", border.style="solid", label.placement="internal", size="50,50")
class Root extends CaseNode {
}

class Act extends CaseNode, Member {
  attr int[1] cardinality;
}

abstract class Member {
}

@gmf.node(label="name", figure="rectangle", border.width="2", border.style="solid", label.placement="internal", size="50,50")
class ActOne extends Act {
}

@gmf.node(label="name", figure="rectangle", border.width="2", border.style="solid", label.placement="internal", size="50,50")
class ActTwo extends Act {
}