IT Infrastructure is the term to describe the set of resources IT (hardware, software) and non-IT
(procedures, documentation) including people, needed to deliver the IT Service.
These are usually refered as PPT, standing for People, Processes and Technology, or sometimes as the
"Four Ps", standing for People, Processes, Products and Partners.
The four Ps are recognised in the IT literature, but very frequently not taken the full advantage of them.