of, pertaining to, or originating with the common people, nonprofessionals, or the lower ranks of an organization:
The five-day workweek was a bottom-up movement some business leaders and politicians finally supported.
from the lowest level of a hierarchy or process to the top:
a bottom-up approach to corporate decision-making
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Therefore, the design may be iterate in general no matter it's bottom-up or top-down.
Also, some people believe that a bottom-up flash yields softer, foxier lighting.
What makes these images useful is that they can't be perceived using bottom-up sensory processes.
He argues that the problem, if it exists, will be solved by bottom-up innovation in energy technologies.
Using clever fonts, making toner cartridges last longer and saving paper are all bottom-up ways to cut printing costs.
The best way to achieve this is to provide top-down not bottom-up regulation.
Networks, on the other hand, are bottom-up enterprises.
Policy makers always underestimate the power of the bottom-up quest for dignity, so they are slow to understand what is happening.
Emergent systems are bottom-up and top-down simultaneously.