Description: percentage availability of a component over a certain period of time; Name: Availability depending on time
Description: During a given period of time, percentage of the time during which an item was able to perform when required ; Name: Time based availability
Description: extent of protection provided by an enclosure against access to hazardous parts, against ingress of solid foreign objects and/or ingress of water and verified by standardized test methods, expressed as a IP rating; Name: degree of protection