Not exactly, it's evolved out of the old "Tiered" UAV classes.
Tier 1 was a Low Altitude Long Endurance (LALE), specs of the CIA Gnat 750/LOFTY VIEW. The Gnat was developed into the Predator, which flies a lot higher.
Tier 2 was Medium Altitude Long Endurance (MALE), ended up as the Predator drone.
Tier 3 was High Altitude Long Endurance (HALE) and stealthy, and was just flat too complex to make at the time (If you can find the QUARTZ/AARS requirements, that was what Tier 3 was supposed to be). So the program was split into Tier 2+ and Tier 3-.
Tier 2+ was HALE without stealth, and that competition delivered the RQ4/MQ4 planes.
Tier 3- was stealth first, altitude and endurance second, and became the Lockheed-Boeing RQ3 Dark Star, which then got cancelled.
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