Final answer:
The installation deployment officer (IDO) and the unit deployment manager (UDM) jointly determine the base requirements for establishing a personnel deployment facility function (PDFF) line.
Step-by-step explanation:
The installation deployment officer (IDO) works in conjunction with the unit deployment manager (UDM) to determine base requirements for setting up a personnel deployment facility function (PDFF) line. This process is a key element in ensuring personnel are effectively processed and prepared for deployment in a military context. The IDO and UDM assess the available resources, space, and personnel needs to create an efficient and operational PDFF line capable of handling various tasks such as equipment issue, briefings, and the deployment in-processing of personnel.