<prompt> Translate the following text to EnglishKwa hivyo, kwa wale wanaochunguza utafiti wa kesi kama muundo wa tathmini, lazima kwanza waamue ni aina gani ya swali la tathmini swali lao maalum, na kisha wachunguze nguvu na mapungufu ya kila aina ya utafiti wa kesi ili kujibu.  <response>: Evaluators considering the case study as a design for evaluation must first decide what type of evaluation question their specific question is and then examine the strengths and limitations of each type of case study for answering it. 