noun
development deadline; master up
Wasei-eigo term used in the game industry for the final deadline when development is complete and the master disc is submitted. Not used in general project management.
wasei-eigo (Japanese-coined English), from master up
マスターアップが来週に迫っているので、チームは連日残業している。
The master-up deadline is next week, so the team is working overtime every day.
このゲームはマスターアップを無事に迎え、発売日が確定した。
This game successfully reached its master-up milestone, and the release date has been set.