<prompt> Translate the following text to EnglishNjia moja ni kuendeleza ufafanuzi wa kazi ya utafiti wa kesi ambayo inajumuisha sifa zake muhimu za mbinu na kisha kuchunguza nguvu na mapungufu ya masomo ya kesi kwa maswali tofauti ya tathmini.  <response>: One way is to develop a working definition of the case study that embodies its essential methodological features and then to examine the strengths and limitations of case studies for different evaluation questions. 