CIO, i.e. the IT director, ensures that the IT department contributes to the overall goals of the organization as a whole.
CIO governs the whole IT department.
Defines and promotes IT strategy as linked to the business strategy. Manages the IT department includeing financial, HR, and motivational aspects. Plans and budgets all IT resources. Oversees the delivery of IT services. Manages the delivery of IT services in accordance with the needs of business.
Harmony of IT and business needs
Functioning IT with acceptable costs