uOttawaUniversity of Ottawa - Canadas University
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Election System


Example

// UML class diagram for a system for managing elections, written in Umple
namespace electorial;

// association should be ->
class PollingStation {
 Integer number;
 address;

 1 -- * PollInElection; 
} 
 
class ElectedBody{
 description;

 1 -- * Position;
}

 //Different elections may have different sets of polls
class Election{
 Date date;
 
 1 -- * PollInElection;
 1 -- * ElectionForPosition;
}

class ElectionForPosition{
 1 -- * Candidature;
}

//Eg. Mayor, Councilor. AKA seats
//A position can have different elections for it at different times, eg. once every four years.
class Position {
 description;
 1 -- * ElectionForPosition;
}

//We need candidature class since a candidate can run for different 
//positions and for the smae positions at subsequent elections
class Candidature {
 internal Boolean isIncumbent = false;
 
 public void markAsIncumbent()
 {
   isIncumbent = true;
 }
 
 public String toString()
 {
   return isIncumbent ? "Incumbent" : "Candidature";
 }
}

class Candidate {
 name;
 Integer phoneNumber;
 address;
 
 1 -- * Candidature;
}

class PollInElection {
 Integer number;
 
 1 -- * Voter;
}

associationClass VotesInPoll{
 * Candidature;
 * PollInElection;
 Integer numVotes;
}

class Voter{
 name;
 address;
 * -- * Candidature;
}

class ElectoralDistrict{
 1 -- * Voter; 
 0..1 -- * Position; 
 0..1 -- * ElectoralDistrict subDistrict;
}    

      

Load the above code into UmpleOnline