I think you need other terms once you start to go into cousins as you can have the children of sisters or of brother and sister etc. These relationships can become quite complicated but they need to be specified to have uniqueness. Here is what we use.
Enumerations:
Mother Mother
Father Father
TwinsMonozygous Twins-Monozygous
TwinsDizygous Twins-Dizygous
TwinsUnknown Twins-Unknown
FullSibling FullSibling
FullSiblingM Half Sibling (shared mother)
FullSiblingF Half Sibling (shared father)
MaternalAunt Maternal Aunt
PaternalAunt Paternal Aunt
MaternalUncle Maternal Uncle
PaternalUncle Paternal Uncle
MaternalCousinSister Maternal Cousin - child of mother's sister
MaternalCousinBrother Maternal Cousin - child of mother's brother
PaternalCousinSister Paternal Cousin - child of father's sister
PaternalCousinBrother Paternal Cousin - child of father's brother
MaternalGrandmother Maternal Grandmother
MaternalGrandfather Maternal Grandfather
PaternalGrandmother Paternal Grandmother
PaternalGrandfather Paternal Grandfather
DoubleFirstCousin Double First Cousin
FirstCousinOnceRemoved First Cousin OnceRemoved
SecondCousin Second Cousin
SecondCousinOnceRemoved Second Cousin Once Removed
ThirdCousin Third Cousin
Son Son
Daughter Daughter
To Do: Ensure KIN can represent the same relationships as the enumerations above. Likely just a matter of cross-checking and adding in anything that might be missing.
Note: After discussion, we have opted to abandon uniqueness.
Comment from the PRC Review Process:
I think you need other terms once you start to go into cousins as you can have the children of sisters or of brother and sister etc. These relationships can become quite complicated but they need to be specified to have uniqueness. Here is what we use.
Enumerations: Mother Mother Father Father TwinsMonozygous Twins-Monozygous TwinsDizygous Twins-Dizygous TwinsUnknown Twins-Unknown FullSibling FullSibling FullSiblingM Half Sibling (shared mother) FullSiblingF Half Sibling (shared father) MaternalAunt Maternal Aunt PaternalAunt Paternal Aunt MaternalUncle Maternal Uncle PaternalUncle Paternal Uncle MaternalCousinSister Maternal Cousin - child of mother's sister MaternalCousinBrother Maternal Cousin - child of mother's brother PaternalCousinSister Paternal Cousin - child of father's sister PaternalCousinBrother Paternal Cousin - child of father's brother MaternalGrandmother Maternal Grandmother MaternalGrandfather Maternal Grandfather PaternalGrandmother Paternal Grandmother PaternalGrandfather Paternal Grandfather DoubleFirstCousin Double First Cousin FirstCousinOnceRemoved First Cousin OnceRemoved SecondCousin Second Cousin SecondCousinOnceRemoved Second Cousin Once Removed ThirdCousin Third Cousin Son Son Daughter Daughter
To Do: Ensure KIN can represent the same relationships as the enumerations above. Likely just a matter of cross-checking and adding in anything that might be missing. Note: After discussion, we have opted to abandon uniqueness.