Standard Operating Procedures (SOP)

A set of written instructions that document how to carry out a routine task within a business. SOPs detail how activities should be carried out to minimise risk and can also be used for staff training.
E.g. Adding new users, setting up phones.
"Standard operating procedures are written, step-by-step instructions that describe how to perform a routine activity. Employees should complete them in the exact same way every time so that the business can remain consistent. Standard operating procedures help maintain safety and efficiency."

"A Standard Operating Procedure is a document which describes the regularly recurring operations relevant to the quality of the investigation. The purpose of a SOP is to carry out the operations correctly and always in the same manner. A SOP should be available at the place where the work is done."

https://www.ncl.ac.uk/ohss/safety/risk/sop.htm