Often used in academic, analytical, or formal contexts to emphasize the nature or quality of a connection, rather than just the fact of being related. Compared to 関係, 関係性 highlights the abstract or structural aspect of the relationship.
In this study, we analyzed the relationship between the two variables.
人間関係においては、単なる知り合い以上の関係性が求められることもある。
In human relationships, sometimes a deeper connection beyond mere acquaintance is required.