<prompt> Translate the following text to SwahiliWe reported in February 1998 that IRS had not clearly defined system modernization phases, nor had it adequately specified organizational roles, making it unclear who was to do what.  <response>: Mwaka 1998 tuliripoti kwamba IRS haikuwa imefafanua wazi hatua za kisasa za mfumo, wala haikuwa imefafanua vizuri majukumu ya shirika, ikifanya iwe wazi ni nani anayepaswa kufanya nini. 