TimeUnit isA DataType end
Time in TimeUnit isA Value end

BlueDim in Dimension with
  dimcolor col: "0,0,210"
end


Person end

Element TrainingType with
  attribute
   trainer_2: Person
  potency
   BlueDim: 2
end

Element ActivityType with
  attribute
   duration_2: Time
  potency
   BlueDim: 2
end

Element DesignCode in ActivityType,TrainingType with
  attribute
    trainer_1: Person;
    duration_1: Time
  potency
   BlueDim: 1
end

DesignCode->TrainingType 
with
  dimension dim: BlueDim
end

DesignCode->ActivityType 
with
  dimension dim: BlueDim
end