Search and process of necessary data for building a family-tree on father's or mother's side, a family-tree expansion (from the descendant towards his ancestors) or an ahnentafel (from an ancestor pair towards their descendants).
Search and process of data about history of a house, a homestead or a place.
By combining previous methods and research of more material it is possible to obtain a more complex insight into the life of ancestors. E.g. a unique card of each ancestor or a family chronicle.