
SoftWare Interrupt - a name given to a routine in RISC OS - it can be one provided by the operating system itself or one which an application creates - it is then available to be used by other applications and so is, effectively, an extension to the operating system
Found on
http://www.archivemag.co.uk/

Star Wars Insider (official Star Wars magazine)
Found on
http://www.swbookzone.com/glossary.html

Site Work Instructions (SWI) are technical instructions written by the engineering consultant to the contractor to execute a particular job or work that does not affect the contract sum or time.
Found on
https://www.rakenapp.com/construction-glossary
No exact match found.