Dalet calls it [MOS] right on their own website.
"Create, manage, and distribute content with an editorial and orchestration platform that unifies the content chain by managing assets, metadata, workflows, production and distribution processes."
Q often uses the words "assets" and did so again today in relation to media control ("F assets").
What does DALET mean?
The letter is based on a glyph of the Middle Bronze Age alphabets, probably called dalt "door" (door in Modern Hebrew is delet), ultimately based on a hieroglyph depicting a door.