DOWNTIME is merely an acronym to describe the 8 wastes:
- Non-utilized talent
- Extra processing
This I found at wikipedia's Muda entry, and thought it might be worth kicking a link and a quick definition on the blog for those who might want to also use a mnemonic trick.
Note that this is the 7 Wastes that are widely recognized, and the 8th waste of unused talent. This acronym doesn't tell you what to do about them, but that's what the kaizen event is about and we leave it to other experts to help you deal with recognized waste (for now).