Survival Function: The survival function, also known as the reliability function, represents the probability that a component or system will survive beyond a certain time.
Hazard Function:The hazard function, or failure rate function, describes the instantaneous rate of failure at a given time, conditional on the system surviving up to that time.
Scale Parameter: The scale parameter, often denoted as $\lambda$, determines the scale or spread of the Weibull distribution and is related to the average lifetime of the system or component.