1)Fortheinterdepartmentalcommunicationtobeeffective,onedepartmentmustsendaclearandcomprehensivemessagetoanotherdepartment,andthemessagemustbeclearlyandcompletelyunderstood.Ifit'snot,therewillbeproblemsanditcanleadtoconfusion,lackofmoraleandfrustrationamongemployeesanddepartments.

　　2)Itisimportanttoensurethatalldepartmentsareonthesamepageasworksituationschange.Onedepartmentmaymakeachangethataffectsanotherdepartment.Ifthefirstdepartmentdoesn'tcommunicatethosechangestotheotherdepartment,therecanbeconfusion,frustrationandanger.Therefore,itcanendupinchaos,withalackofmotivationamongemployeesandanabsenceoftrustandrespectbetweendepartments.

　　3)Oralcommunicationcanbecarriedoutbetweendepartmentalleadersviathephone,videoconferencingandone-on-onemeetings.Thisgivesopportunitiestohavediscussionsandhelptomakedecisionsquickly.Anydecisionsorrequiredactionsmadethroughthemeetingsshouldbefollowedbywrittendocuments,suchasmeetingminutes,memosoremailstoensureeveryonewhorequiresanactionisgoingtofollowupcorrectly.