
IT as a service is an operational model where the information technology (IT) service provider delivers an information technology service to a business.
Outsourcing is an agreement in which one company hires another company to be responsible for a planned or existing activity which otherwise is or
Staffing is the process of finding the right worker with appropriate qualifications or experience and recruiting them to fill a job position
A software system is a system of intercommunicating components based on software forming part of a computer system (a combination of hardware and software).
IT "consists of a number of separate programs, configuration files, which are used to set up these programs, system documentation, which describes the structure of the system, and user documentation, which explains how to use the system"