| organisation | the name of the organisation that is the owner of this module. | Yes | 
    | module | the name of the module described by this ivy file. | Yes | 
    | branch | the branch of this module. since 1.4 | No, defaults to the default branch [[settings/conf setting]], or nothing if no default branch is configured | 
    | revision | the revision of this module. | Yes in repository ivy files, no in ivy files to resolve | 
    | status | the status of this module. See terminology section for details | No, default to 'integration' | 
    | publication | the date of publication of this module. It should be given in this format: yyyyMMddHHmmss | No, but it's a good practice to set it with delivered ivy files |