The document discusses core HR functions in Oracle including recruitment. It describes setting up locations and organizations in the work structures module. Recruitment activities like creating vacancies, recruitment activities, and applicants are covered. Interview planning and mass applicant updates are also included. The document discusses using key flexfields, descriptive flexfields, extra information types and security indicator types to customize data capture. It provides navigation details to perform various core HR and recruitment tasks in Oracle HRMS like people entry and maintenance.