/*
  University System- sample system 
  Last updated: May 22, 2008
  Note: this version replces the association classes with the appropriate class/association substitution
*/
//Namespace for facade class.
namespace University

//Namespace for core of the system.
namespace University.core

class Course{
}
class Topic {
}

/*association PrerequisiteReason { 
 * Course successor;
 * Course prerequisite;
}*/
class PrerequisiteReason {
 * -- * Topic materialNeededBySuccessor;
}

/*association MutualExclusionReason { 
 * Course;
 * Course isMutualyExclusiveWith;
}*/
class MutualExclusionReason {
 * -- * Topic overlappingMaterial;
}

association{
 * MutualExclusionReason mutualyExclusiveFirstEnd -- 1 Course;
}
association{
 * MutualExclusionReason mutualyExclusiveSecondEnd -- 1 Course isMutualyExclusiveWith;
}

association{
 * PrerequisiteReason successorReason -- 1 Course successor;
}
association{
 * PrerequisiteReason prerequisiteReason -- 1 Course prerequisite;
}