Information Technology. Additionally, the Administration and Information Technology departments use the services of each other. Data concerning the past year are as follows: (Click the icon to view the past year data.) Read the requirements. equations? complete the allocation of the support departments' costs. (Abbreviations used: AD= administration; IT = information technology.) AD= 1T= IT = Information Data table Information Technology. Additionally, the Administration and Information Technology departments use the services of each other. Data concerning the past year are as follows: (Click the icon to view the past year data.) Read the requirements. equations? complete the allocation of the support departments' costs. (Abbreviations used: AD= administration; IT = information technology.) AD= 1T= IT = Information Data table