<prompt> Translate the following text to EnglishTakwimu ni ya kuaminika wakati wao ni 1 kamili wanajumuisha data zote na rekodi zinahitajika kwa ajili ya kazi na 2 sahihi wanaonyesha data zilizowekwa katika chanzo au, kama inapatikana, katika nyaraka chanzo.  <response>: Data are reliable when they are 1 complete they contain all of the data elements and records needed for the engagement2 and 2 accurate they reflect the data entered at the source or, if available, in the source documents. 