The International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). Second edition. 2003-02-15. This second edition cancels and replaces the first edition (ISO/IEC 11179-3:1994), which has been technically revised.108p. The primary purpose of ISO/IEC 11179-3 is to specify the structure of a Metadata Registry (see 1.1). ISO/IEC 11179-3 also specifies basic attributes which are required to describe metadata items, and which may be used in situations where a complete metadata registry is not appropriate (e.g. in the specification of other International Standards)