Whois & Analysis for cite4me.org

A tool is any physical item that can be used to achieve a goal, especially if the item is not consumed in the process.

Tool use by humans dates back millions of years, and other animals are also known to employ simple tools.

Educational technology is defined by the Association for Educational Communications and Technology as "the study and ethical practice of facilitating learning and improving performance by creating, using, and managing appropriate technological processes and resources".

A machine is a tool containing one or more parts that uses energy to perform an intended action.

Machines are usually powered by chemical, thermal, or electrical means, and are often motorized.

Historically, a power tool also required moving parts to classify as a machine.

However, the advent of electronics has led to the development of power tools without moving parts that are considered machines.

Precision is a description of random errors, a measure of statistical variability.

Accuracy has two definitions:

Reliability engineering is engineering that emphasizes dependability in the lifecycle management of a product.

Dependability, or reliability, describes the ability of a system or component to function under stated conditions for a specified period of time.

Reliability may also describe the ability to function at a specified moment or interval of time (Availability).

Reliability engineering represents a sub-discipline within systems engineering.

Reliability is theoretically defined as the probability of success, as the frequency of failures; or in terms of availability, as a probability derived from reliability, testability and maintainability.

Testability, Maintainability and maintenance are often defined as a part of "reliability engineering" in Reliability Programs.

Reliability plays a key role in the cost-effectiveness of systems.