# SOI

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/SOI
> Markdown URL: https://mediated.wiki/source/SOI.md
> Source: https://en.wikipedia.org/wiki/SOI
> Source revision: 1339339249
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**SOI** or **soi** or *variation* may refer to:

## Technology

- [Silicon on insulator](/source/Silicon_on_insulator), in semiconductor manufacturing
- [Signal operating instructions](/source/Signal_operating_instructions)
- [Service-oriented infrastructure](/source/Service-oriented_infrastructure)
- Stages of involvement for safety-critical [software](/source/DO-178C#Processes_and_documents) and [hardware](/source/DO-254#Planning_process), US FAA

## Science

- [Southern Oscillation Index](/source/Southern_Oscillation_Index)
- [Sphere of influence (astrodynamics)](/source/Sphere_of_influence_(astrodynamics))
- [Second-order intercept point](/source/Second-order_intercept_point), a measure of linearity that quantifies second-order distortion generated by nonlinear systems and devices
- [Styrene-oxide isomerase](/source/Styrene-oxide_isomerase), an [enzyme](/source/Enzyme) that catalyzes a [chemical reaction](/source/Chemical_reaction)

## Soi

- A **soi** is a side-street branching off a major street in Thailand.
- [Soi (surname)](/source/Soi_(surname)), a surname
- [Soi language](/source/Soi_language), an Iranian language
- [Chua Soi Lek](/source/Chua_Soi_Lek) (born 1947), Malaysian politician

## Other uses

- [Sociosexual Orientation Inventory](/source/Sociosexual_Orientation_Inventory)
- [School of Infantry](/source/School_of_Infantry)
- [Severity of illness](/source/Severity_of_illness)
- [Solomon Islands](/source/Solomon_Islands), UNDP country code
- [Sphere of influence](/source/Sphere_of_influence), in politics
- [Symphony Orchestra of India](/source/Symphony_Orchestra_of_India)
- [Stars on Ice](/source/Stars_on_Ice), a skating tour
- [Statistics of Income](/source/Statistics_of_Income) of the US Internal Revenue Service
- [Shadow of Israphel](/source/Shadow_of_Israphel), a Minecraft series by The Yogscast
- [Soi](/source/Microsoft_text-to-speech_voices#In_popular_culture), an error in the Microsoft Sam text to speech voice when saying "soy" or "soi".

## See also

- [Pou-Soi](/source/Pou-Soi)
- [Soy (disambiguation)](/source/Soy_(disambiguation))
- [SOJ (disambiguation)](/source/SOJ_(disambiguation))
- [Soja (disambiguation)](/source/Soja_(disambiguation))
- [Soya (disambiguation)](/source/Soya_(disambiguation))
- [Soia (disambiguation)](/source/Soia_(disambiguation))

---
Adapted from the Wikipedia article [SOI](https://en.wikipedia.org/wiki/SOI) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/SOI?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.