This schema describes a FAMILY element intended for use
in family tree documents. It was developed as an example
for Chapter 25 of the XML Bible, 3rd Edition, by
Elliotte Rusty Harold (elharo@metalab.unc.edu)
Published by Wiley 2004. ISBN 0-7645-4986-3.
This schema is placed in the public domain. Please
feel free to use it or adapt it in any way you like.
The FamilyType is used exclusively for FAMILY
elements. Each such element can contains one father
(represented by a HUSBAND element for legacy reasons,
although no marriage is implied), one mother
(represented by a WIFE element for legacy reasons,
although no marriage is implied), and any number of
children represented by CHILD elements. All of these
elements reference PERSON elements elsewhere in the
document and any or all of them may be omitted.
Family membership is not exclusive. A single person
may be a member of multiple families.