Service Contracts Service Contract Packages t t OpenACS API and UI for service contracts 2007-07-18 3 OpenACS Service contracts defines an API for the creation of interfaces and discovery of interface implementations. Examples are the contracts used for search which provide a means to get content on a given object and to translate an object_id to a url or the contracts used by dotlrn and new-portals to allow packages to provide portalized panes. GPL version 2 3