scope:

This International Standard specifies the semantics and syntax of DXL. DXL is a language for exchanging tree-structured charts among CASE tools.

DXL is applicable to:

1. exchanging ISODEC 863 1 compliant tree-structured charts (examples of which are shown in annex A (informative) of ISO/IEC 863 i);

2. exchanging program flowcharts defined in ISOíIEC 5807 if they are weil-structured and don't have data defined in ISO/IEC 5807; and

3. describing procedure oriented algorithms.

This International Standard does not specie:

1. graphical information about a chart, such as the shape, size, and location of symbols;

2. configuration information of a chart, such as its version, author, and file name; or

3. information about the data used in the algorithm described by DXL, such as its structure, reading and writing, and declaration.