The DCR tool is a site for businesses and academia to create and simulate DCR graphs collaboratively. Users can create graphs by using the Graph Editor. The DCR tool adds a social aspect to the DCR-technology: Here, users can invite friends to the tool, send friendship requests to existing users, comment on graphs, browse graphs, use the activity stream for discussing graph design which supports ongoing interdepartmental collaboration and a high degree of model/real world resemblance.
The tool is purely cloud based, which means that it runs out of the box directly in a browser, with no installation or operating system requirements. To access the tool an authenticated user credentials are required which can be obtained by signing up for free
A link to the tool can be found here: http://www.dcrgraphs.net
sign in page. 3rd party logins like Facebook and LinkedIN are supported.