<prompt> Translate the following text to SwahiliWe have developed a definition of case studies that leads to appropriate uses and says something about how a good case study is conducted.  <response>: Tumeunda ufafanuzi wa masomo ya kesi ambayo inaongoza kwa matumizi sahihi na inasema kitu kuhusu jinsi utafiti mzuri wa kesi unavyofanywa. 