public void addMember(Name aName, Address anAddress, Email anEmail, Organization anOrganization)

Given: The Name object aName, the Address object anAddress, the Email object anEmail and the Organization object organization35.

1. Check that no Member object with the supplied attributes exists (linked to any Schools or Organizations in the system)
   As the check suceeds:
2. A new Member object member6 is created with the supplied attributes
3. member6 is linked to organization35

If the Member already exists then throw an exception

• private collection <School> school

• References a collection of all linked School objects

• private collection <Organization> organizations

• References a collection of all linked Organization objects

• public void addMember(Name aName, Address anAddress, Email anEmail, Organization anOrganization)
• Postcondition: If a Member obect exists in the system with the supplied attributes an exception is thrown, otherwise a new Member object, aMember, is created with the supplied attributes. anOrganization records a reference to aMember

• private Collection<Member> members

• public Boolean hasMember(Name aName, Address anAddress, Email anEmail)

• Postcondition: returns True if the receivers members contains a Member with the supplied attributes

• private Collection<Member> members

• public Boolean hasMember(Name aName, Address anAddress, Email anEmail)

• Postcondition: returns True if the receivers members contains a Member with the supplied attributes

• public Boolean addMember(aMember)

• Postcondition: a reference to aMember is recorded.

• none

• Member(Name aName, Address anAddress, Email anEmail)
  Post condition: a new Member object aMember is created. A reference to aMember is returned

• isMemberOf from Organization to Member
• worksAt from School to Member