upti - Vick
- uptime
- uptime cost
- uptrend
- upward bias
- upward error
- upward trend analysis
- urgency
- urgency class
- urgency number
- urgency rating
- urgency-number distribution
- urgent delivery
- urgent repair
- urgent task
- usability
- usable
- usable condition
- usable fraction
- usable life
- usable part
- usable time
- usage
- usage data
- usage efficiency
- usage error
- usage intensity
- usage model
- usage pattern
- usage record card
- usage [use] coefficient
- usage [use] conditions
- usage [use] period
- usage [use] rate
- use
- use assistance
- use assurance
- use availability
- use degradation factor
- use environment
- use reliability
