Many customers have integrated SolarWinds Orion products with Remedy Trouble Ticketing System. There is a lot of information here on Thwack on how it can be done. We even have a couple white papers that discuss different ways to do it.
Discussion document on integrating SolarWinds Orion with Trouble Ticketing Systems:
http://www.solarwinds.com/documentation/Orion/docs/OrionTTIntegration.pdf
Whitepaper discussing integration mechanisms in general:
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Here is one customers Remedy Integration:
And here are a few more:
https://thwack.solarwinds.com/message/75712#75712
https://thwack.solarwinds.com/message/94948#94948
https://thwack.solarwinds.com/message/94954#94954
Other forms of integration utilizing SDK:
https://thwack.solarwinds.com/message/283564#283564
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Quick search within Thwack postings on "remedy integration":
https://thwack.solarwinds.com/search.jspa?q=remedy+integration