<prompt> Translate the following text to EnglishUsimamizi wa interface inakuwa muhimu kwa sababu tathmini ya uwajibikaji kwa matatizo yanayotokea wakati wa maendeleo ya mradi ni vigumu kutokana na aina na kutenganishwa kwa mikataba ya mtu binafsi.  <response>: Interface management becomes critical because assessment of accountability for problems incurred during the projects evolution is difficult due to the variety and separation of individual contracts. 