Here’s what Jeri Ryan had to say about Seven and Janeway’s relationship in the April 1998 issue of Starlog:
“In the beginning, it was a very antagonistic relationship she had with everybody, but particularly Janeway. It was Janeway who forced the situation, Janeway who put Seven where she is against her will. Gradually…the first step for Seven became clear. She had to accept the fact that she was going to become human, whether or not she liked it. She came to the decision that if it was going to happen anyway, she had to learn as much about humanity as she could. So, she took that step.
:”The relationships with all of the characters have continued to develop and change as a result. Her relationship with Janeway became one of mentor-student. Then it merged into a mother-daughter relationship, which I think has been nice for both characters. That change, though, did lead to a concern, which was losing the conflict and making things too cozy too quickly. We’ve really gotten back to that conflict since then, though…Now, it’s developing into a mother-rebellious daughter relationship, which is more fun.”