Establishing a shared services environment involves consolidating specific administrative functions, such as payroll or HR, into a single central unit to improve efficiency and reduce costs. Key considerations during the planning phase include analyzing current processes to identify improvements (Option A), determining which specific functions will be centralized (Option C), and selecting the best service delivery methods (Option D), such as the use of an internal service center or a specialized software platform. However, a " determination of payroll frequency " (Option B) is generally not a factor in establishing the shared services structure itself. Pay frequency is typically an organizational policy or a matter of state labor law compliance that the shared services center will execute regardless of its internal delivery model. Shared services focus on the how of the service delivery rather than the what of the corporate pay cycle policy.