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4. Experimental verification
As soon as a system is available at the prototype stage, it is necessary to carry out experimental checks to ensure that the maintainability predictions made during development are correct, and that the specifications are likely to be met. These verifications can be qualitative or quantitative, the latter covering both corrective and preventive maintenance times. These checks must be carried out before statistical demonstration tests can be carried out, if they are provided for in the contract.
4.1 Qualitative verification
It constitutes a review of the project, and will be carried out by means of critical examinations covering important points for maintainability such as :
check that plans and instructions for...
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