Hammurapi Group Party Model includes Party (person or organization), Role, Contact Info, Common object and other classes. Other models reference the Party model to provide facilities to associate roles with model elements. E.g. to track ownership information for rule set or rules in Hammurapi rules. The Party model is based on OMG Party model.
Association of software components with parties - organizations and persons - increases maintainability.
Modern applications consist of multiple pieces - components or services. The party model allows to associate multiple roles with application components, e.g. Development, Production Support, Infrastructure, etc.