Reliability

Define reliability as a core non-functional characteristic in System Design, measuring consistent performance over time. Learn to quantify system reliability using key metrics like MTBF and MTTR. Understand the critical distinction between reliability and availability in meeting service level objectives.

What is reliability?

Reliability is the probability that a service will perform its intended functions for a specified period. It measures performance consistency under varying operating conditions.

We typically use mean time between failures (MTBF) and mean time to repair (MTTR) to measure reliability.