Review on International Standards and Specifications of Map Symbol

A number of international standards organizations have developed a lot of specifications of symbolic storage, expression and mapping, from the initial simple and conceptualized symbol standards, to the latest specialized, application-oriented symbol specifications, the international standards and specifications of map symbol have undergone a constant development and improvement process. These existing international standards and specifications of map symbol are reviewed. It is expected that the sharing framework based on Symbology Encoding Implementation Specification is hope to be realized in the near future.