<prompt> Translate the following text to SwahiliThis paper presents an evaluation perspective on case studies, defines them, and determines their appropriateness in terms of the type of evaluation question posed.  <response>: Karatasi hii inatoa mtazamo wa tathmini juu ya masomo ya kesi, inafafanua, na huamua usahihi wao katika suala la aina ya swali la tathmini lililoulizwa. 