Evaluation is the process of gathering evidence about whether an object of conformity, such as a product, process or service, meets specified requirements. It is also sometimes used in the context of person certification.

Evaluation includes the ‘selection’ and ‘determination’ functions described in the functional approach, including:

• confirming the specific objects to be evaluated;
• confirming the specific requirements that those objects must fulfil;
• sampling the specified objects;
• applying one or more determination techniques such as testing, inspection and auditing, and also other activities such as studying the design drawings and specifications to ascertain whether the features required to meet the specified requirements are adequately defined;
• collating the evidence from the above techniques prior to a decision on overall conformity being made.

According to the PSA license, ISIRI is used to inspect the goods, the executive method, the executive method of developing inspection services

 [ PSA Evaluation Procedure QSP7.4)