The GraphML Schema Documentation

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File Format Links
GXL - an XML-based graph exchange format developed for software re-engineering.

GraphXML - XML-based file format for graphs that was presented at Graph Drawing 2000 and is superseded by GraphML.

GML - a widely used graph exchange format (non-XML).

XGMML - an XML-based file format for graphs based on GML.

SVG - an XML-based graphics format.

Graph Drawing Links - home of graph drawing

GD 2004 - 12th Int. Symp. Graph Drawing, 12-14 Sep 2004, Harlem, NYC

XML Links
XML - home of the Extensible Markup Language at the World Wide Web Consortium.

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Element: port

Description: Nodes may be structured by ports; thus edges are not only attached to a node but to a certain port in this node. Occurence: <node>, <port>.

Type: port.type

Complex type for the <port> element.  Type is final.


name  (required)  of type xs:NMTOKEN  identifies this port, within the node it is contained in.
Identity Constraint Definitions: port_name_key



desc?, ( data | port ) *

Identity Constraint Definitions:

Ensures: uniqueness of the key attributes of <data> children of this <port> element.

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coming soon
LEDA extension package for GraphML.
18 March 2003
XML Schema specification and documentation available for GraphML 1.0rc (release candidate)
23 July 2002
GraphML presentation at the annual meeting of DFG Research Priority 1126 Algorithmic Aspects of Large and Complex Networks. (ps, pdf)
28 June 2002
yFiles extension package for GraphML version 1.0 released.
22 May 2002
Release candidates for extensions graphml-attributes (for data attributes) and graphml-parseinfo (for lightweight parsers) completed. See current specification.
12 March 2002
GraphML proposed as the standard format for the network data archive to be created within EU FET Open Project COSIN.