<prompt> Translate the following text to EnglishSura hii inazingatia viwango vya kujitolea na msaada kwa ununuzi uliopangwa na wasimamizi wa juu na watumiaji, wadau wawili muhimu katika ununuzi.  <response>: This chapter focuses on levels of commitment and support for a planned acquisition by senior managers and users, two key stakeholders in an acquisition. 