The Hydrogen Analysis (H2A) production models provide transparent reporting of detailed process design assumptions and a consistent cost analysis methodology for the production of hydrogen at central and distributed (forecourt / filling - station) facilities. (h2awsm.org)
Designing a fun and functional economy is no easy task as many design assumptions tend to backfire when they come in contact with the player. (gamesetwatch.com)
All kinds of unexpected problems can crop up, and engineers can't always anticipate exactly how thousands of car buyers will challenge their design assumptions. (fortune.com)