*Broken family links. These are the cases when a person's record refers to a family while the family's record does not refer to that person, and vice versa.

*Missing media objects. The missing media object is the object whose file is referenced in the database but does not exist. This can happen when the file is accidentally deleted, renamed, or moved to another location.

*Empty families. These are the family entries which have no reference to any person as their member.

*Parent relationship. This checks all families to ensure that father and mother are not mixed up. The check is also made that parents have different gender. If they have common gender then their relationship is renamed to "Partners".