<prompt> Translate the following text to EnglishTathmini tofauti inaweza kuchukua fomu ya kujithamini pamoja na ukaguzi wa muundo wa udhibiti na majaribio ya moja kwa moja ya udhibiti wa ndani.  <response>: Separate evaluations may take the form of self-assessments as well as review of control design and direct testing of internal control. 