Specifies the principles to be used for defining technical data element types with associated classification schemes needed to describe fully electric components, including electronic and electromechanical components and materials used in electro-technical equipment and systems. The object is to specify principles to be used for defining and the methods required for implementing: a) a set of uniquely defined data element types required to describe electric components each having an unambiguously defined meaning and a defined value domain in a prescribed format; b) a classification scheme of components whereby sets of relevant and valid data element types are assigned to describe the various classes of components.