Testing... One, Two, Three
A testbed is a tool used for simple and repeatable testing of ideas and technology. Testbeds may be comprised of software, hardware, or both.
Testbeds are used in many different professional fields, and take on many different forms.
In electronics companies, testbeds can be used to inspect the behavior of new or faulty circuits.
In the automotive industry, "development mules" are used to check the performance and reliability of a new car component in a standard testbed vehicle.
Engine manufacturers use machines called "environmental test chambers" to test how their engines perform over long periods of time, under intense heat and environmental factors.