Editing Sif

{{Status|Canon}}
{{AI infobox
|name=Sif
|image=
|number=
|began=
|ended= [[2525|February 23, 2525]]
|gender=Female
|description= Blonde woman wearing a long gown and red poncho
|color= Multi-colored gown, blonde hair
|affiliation=[[United Nations Space Command]]
|function=Shipping operations on [[Harvest]]
|battles=
}}
'''Sif''' was a [[UNSC]] [[smart AI]] and the Shipping Operations [[Artificial intelligence|AI]] of the [[human]] [[agriculture world]] of [[Harvest]]. She was based in a data center aboard the [[Tiara]] space station and managed all in- and outbound freight shipping at Harvest.<ref name="ch28">'''Halo: Contact Harvest''', ''page 28-29''</ref>

==Biography==
She was in charge of Harvest's shipping operations which included the balancing of the Tiara, the transporting of human and [[DCS light freighter|shipping]] traffic up and down Harvest's [[Harvest space elevators|seven space elevators]], and control of the passenger and cargo transport in and out of the Tiara, as well as shipping manifests and keeping cargo on schedule. Sif's planetside counterpart, Harvest's Agricultural Operations AI [[Mack]], would often flirt with her, usually to her annoyance and frustration.{{Ref/Reuse|ch28}}

===Battle of Harvest===
{{Main|First Battle of Harvest}} 
As the Tiara was invaded by [[Jiralhanae]], [[Yanme'e]] and [[Unggoy]] from the ''[[Rapid Conversion]]'', Sif was incapacitated by [[Loki]], who used a military-grade virus to delete her restraint algorithms and operational codes in an attempt to prevent her from falling into Covenant hands. Her core logic was later partially restored by the [[Huragok]] [[Lighter Than Some]], although in the absence of emotional self-control programs, she came back online [[Rampancy|rampant]]. Despite her rampant and severely weakened state, she rejoined the fight to rescue the citizens of Harvest. With Lighter than Some continuing to repair her systems on the fly, Sif assisted Loki in rebalancing the number-[[List of "seven" references in Halo|seven]] space tether strand after a Jiralhanae attack threatened to destroy it.<ref>'''Halo: Contact Harvest''', ''page 376''</ref>

Following the evacuation, when Loki decided to destroy her, she agreed and helped him convince Mack to allow it. She told Loki to relay to Mack that she loved him. Soon after, Loki shot a [[mass driver]] round into her data center, destroying her and the Tiara. She attempted to go through the many emotions that rampancy afforded her; however, she found them all to be untrue to her. She ultimately died content, feeling that she had lived a fuller life than her makers had ever thought possible.<ref>'''Halo: Contact Harvest''', ''page 378''</ref>

==Appearance==
Sif's chosen [[avatar]] was in the form of a woman wearing an ankle-length sleeveless gown and long golden hair, with a red poncho that she draped over her shoulders. She spoke with the accent of [[Wikipedia:Nordic countries|Nordic]] royalty. She chose this accent because many of [[Harvest]]'s settlers were from [[Earth]]'s [[United States|American]] heartland, who could trace their ancestry back to [[Scandinavia]].<ref>'''Halo: Contact Harvest''', ''page 30-31''</ref> As a remnant of her human [[Cognitive Impression Modeling|brain donor]], Sif enjoyed the sensation of cargo containers running along Tiara's elevator strands, similar to how her human counterpart loved grooming her own hair twice a day.<ref>'''Halo: Contact Harvest''', ''page 33''</ref>

== Trivia ==
*[[Wikipedia:Sif|Sif]] is the wife of Thor in Norse mythology.
*Much as the gods Sif and Loki were often at odds in Norse mythology, Sif is constantly irritated with Mack's (Loki's) presence.
*In the ''Halo: Contact Harvest'' audio book, [[Jen Taylor]], the voice of [[Cortana]], takes over the narration when Sif is the focus of events.

==List of appearances==
*''[[Halo: Contact Harvest]]'' {{1st}}

==Sources==
{{Ref/Sources}}

{{UNSC AI}}

[[Category:Human AI]]
[[Category:AI characters]]