According to the old custom, after checking the family annals, avoiding the profanation of taboo names (name of a child is same as the name of ancestors); the newborn child is officially given a name. In case of the name of the child is similar the name of ancestors, it has to be changed.
The ceremony of announcement name of a child to ancestor is very simple. It is needed only incense, betel and a glass of wine. Normally this ceremony is organized annual in ancestor death anniversary. All children which are born in each year are invited to announce their name at once. The order of each name in family annals is sorted by year. There are number of forms which are used to record the name but all of them contain the following information: name, parent, generations, branch of family, first-born child or not, date of birth and the date of recording this information.
In Vietnamese viewpoint, the daughter is the child of her husband family so her name is not recorded in family annals. But after The August Revolution, some families abolished that injustice, the name daughter is recorded on family annals