The creator of Magical Girl Lyrical Nanoha is noted as a fan of Super Robot Wars, thus fans has noted that Signum might be based on or is a homage to the heroine of Super Robot Wars Advance, Lamia Loveless. There have been a lot of similarities found between both characters:
* A lot of Signum's spells bear similarities to the attacks executed by the Angelg, Lamia's canonical mecha, particularly the sword and bow attacks (And although Angelg lacked a chain-sword, Laevatein's Schlangenform translates into 'Snake Form', while Lamia is also a name of a mythological snake demon). Furthermore, Signum's overall fighting style resembles that of Lamia's other mecha, Vaisaga.
* They are voiced by the same seiyuu, Kaori Shimizu, with her using similar voice level (she is also known to voice younger characters with lighter voices).
* Their have similar backgrounds:
o Signum was once an artificial intelligence within the Book of Darkness, with ruthless attitude, devoid of any personalities, but gradually changes as she served Hayate
o Lamia was created as an android only to fulfill orders, but after being surrounded with other people, she began to develop her own conscience and free will.
* They were somehow connected with men who were considered dead once:
o Signum fought against Zest Grangeitz, a former member of Capital City Defense Forces, formerly presumed to be dead.
o One of Lamia's predecessors in the W-Series is W15, based on the Shadow Mirror universe's Sanger Zonvolt, which was considered killed in action beforehand. Also later includes Axel Almer, who was thought to be dead in Original Generations, but came back alive in the Gaiden.
* Signum's color scheme matches Angelg's (Pink and white).
* In the final episode of StrikerS, Signum managed to perform a unison with Agito, resulting a new outfit resembling Lamia's outfit, colored in blue
* Both of them also experienced events where they were thought to be dead, but in truth, they were still alive. They also underwent some reprogramming in process, but the ones to ultimately save them turns out to be their masters or sorts.
o In the end of A's, Signum was abruptly deleted by the Alia and Lotte Liese under Gil Graham, only to be called back by Hayate 2 episodes later, reprogrammed with more power and her memories intact.
o In the end of the bonus section of Original Generations, Lamia was abruptly killed by Wilhelm von Juergen. In the continuation of the events in Original Generation Gaiden, it turns out she was slightly reprogrammed by Duminuss and fell under her control. Later on, her former captain Axel Almer ultimately saved and restored her.
