The process of doing and seeing things and of having things happen to you. Skill or knowledge that you get by doing something. The length of time that have spent doing something such as a particular job.
In numerical analysis, accuracy is also the nearness of a calculation to the true value; while precision is the resolution of the representation, typically defined by the number of decimal or binary digits.
Reliability is defined as the probability that a component (or an entire system) will perform its function for a specified period of time, when operating in its design environment.
Quality refers to the ability of a product or service to consistently meet or exceed customer requirements or expectations. Different customers will have different expectations.