Normal conditions are those where a product is used under the conditions it was designed for.
An excellent example of a normal testing scenario is the MOT test. The MOT test is a mandatory test that all vehicles over three years old in the United Kingdom must take.
MOT stands for the Ministry of Transport, a government department that regulates the tests.
The MOT test contains about one hundred and fifty checks which a vehicle must undergo, to assess whether the vehicle is road worthy. These one hundred and fifty checks are the requirements of the MOT test.
Remember earlier it was stated that something is needed to test against, that is a set of requirements.
For the MOT, the requirements are tested against to prove that a vehicle is road worthy.
The United Kingdom the MOT test is divided into the following categories:
Registration plates and Vehicle Identification Number (VIN)
Tyres and road wheels
In each category, several tests are carried out to see if the vehicle meets the requirements for that category. As an example the Registration Plates & Vehicle Identification Number (VIN) category and the Steering category are shown below:
1. Registration Plates and VIN numbers
The vehicle must have a registration plate.
The vehicle's registration plate must be securely fitted.
The vehicle's registration plate must be clearly visible and not be faded, obscured or dirty.
The vehicle's registration plates lettering must conform to the permissible lettering and spacing.
The vehicle must have a VIN (Vehicle Identification Number).
The vehicle's VIN must conform to the permissible lettering and styles
The vehicle's VIN number must be legible