Abstract
It is called “conformity assessment” to assess whether products or services are conformed to relevant standards. Conformity assessment is indispensable when any standards are utilized in business and society. The methods of conformity assessment include suppliers’ declarations of conformity, second-parties’ audits and certifications. Traditionally, many kinds of test charts had been developed in standards related to imaging technologies, and industry associations, academic societies and private companies had sold them for mainly being used for suppliers’ declarations of conformity and second-parties’ audits. But recently new certification systems have been introduced as imaging technologies have been used in many application fields including social safety. As this trend will continues in the future, it is important to consider a method of its conformity assessment simultaneously when a standard related to imaging technologies is developed.