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Site Reliability Engineering (SRE) is a subset of web development that uses elements of software engineering, IT infrastructure, and operations [1] to assist with reliability. SRE is similar to DevOps as both aim to improve the reliability and availability of systems.
Reliability engineering is a sub-discipline of systems engineering that emphasizes the ability of equipment to function without failure. Reliability is defined as the probability that a product, system, or service will perform its intended function adequately for a specified period of time, OR will operate in a defined environment without failure. [1]
Site reliability engineering, a discipline that incorporates aspects of software engineering and applies that to operations; Space Capsule Recovery Experiment, an Indian satellite; Sodium Reactor Experiment, a former US experimental nuclear power plant; Software reverse engineering
In 2003, Google developed site reliability engineering (SRE), an approach for releasing new features continuously into large-scale high-availability systems while maintaining high-quality end-user experience. [35] While SRE predates the development of DevOps, they are generally viewed as being related to each other.
There are three principles of systems design in reliability engineering that can help achieve high availability. Elimination of single points of failure. This means adding or building redundancy into the system so that failure of a component does not mean failure of the entire system. Reliable crossover.
Safety engineering; SAPHIRE; Season cracking; Short time duty; Single point of failure; Site reliability engineering; Statistical interference; Stress–strength analysis; Striation (fatigue) Structural reliability; Structured what-if technique; System integrity
Reliability, availability and serviceability (RAS), also known as reliability, availability, and maintainability (RAM), is a computer hardware engineering term involving reliability engineering, high availability, and serviceability design. The phrase was originally used by IBM as a term to describe the robustness of their mainframe computers.
In engineering, reliability, availability, maintainability and safety (RAMS) [1] [2] is used to characterize a product or system: Reliability: Ability to perform a specific function and may be given as design reliability or operational reliability; Availability: Ability to keep a functioning state in the given environment