Descent: The way in which an individual's family lineage is traced, either through the father's side (patrilineal), the mother's side (matrilineal), or a combination of both (bilateral).
Kinship Terminology: The specific words and labels used to describe different family relationships, such as mother, father, brother, sister, aunt, uncle, and so on.
Residence Patterns: The customary living arrangements of a family, which can be patrilocal (living with or near the husband's family), matrilocal (living with or near the wife's family), or neolocal (establishing a new, independent household).