; (2) serving as the principal advisor to the Secretary on establishing policies for, and directing, all business operations of the Department, including business transformation, business planning and processes, performance management, and business information technology management and improvement activities and programs, including the allocation of resources for business operations and unifying business management efforts across the Department; (3) exercising authority, direction, and control over the Defense Agencies and Department of Defense Field Activities providing shared business services for the Department that are designated by the Secretary for purposes of this paragraph; (4) as of January 1, 2019— (A) serving as the Chief Information Officer of the Department for purposes of section 2222 of this title; (B) administering the responsibilities and duties specified in sections 11315 and 11319 of title 40, section 3506(a)(2) of title 44, and section 2223(a) of this title for business systems and management; and (C) any responsibilities, duties, and powers relating to business systems or management that are exercisable by a chief information officer for the Department, other than those responsibilities, duties, and powers of a chief information officer that are vested in the Chief Information Warfare Officer by section 142 of this title; (5) serving as the official with principal responsibility in the Department for providing for the availability of common, usable, Defense-wide data sets with applications such as improving acquisition outcomes and personnel management