Final answer:
The program T&E master plan is the reference for planning, resourcing, and documenting the T&E of assigned IS and IT systems.
Step-by-step explanation:
The reference for planning, resourcing, and documenting the T&E (Test and Evaluation) of assigned IS (Information Systems) and IT (Information Technology) systems is the program T&E master plan. This plan ensures that the testing and evaluation process is carried out in a systematic and organized manner.