Final answer:
Surveillance Resource Management (SRM) is the access mode of JTIDS/MIDS which allows dynamic assignment of surveillance capacity based on the need of the platform.
Step-by-step explanation:
The Joint Tactical Information Distribution System (JTIDS)/Multifunctional Information Distribution System (MIDS) is a communication system used by various military units which provides secure, high-capacity, jam-resistant, digital data and voice communications. Surveillance Resource Management (SRM) is the JTIDS/MIDS access mode that allows units to automatically and dynamically assign surveillance capacity based on the platform need. This mode is crucial as it helps to manage and optimize the use of available surveillance resources among participating units, thereby enabling a more efficient and flexible response to the constantly changing tactical situation in the battlefield. Through SRM, the JTIDS/MIDS system can assign and prioritize surveillance tasks on the fly, ensuring that the most critical surveillance needs are met promptly.