 
 <prompt> Wia "bottom" dey come from for di name Bottom Up Testing? Based on di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Bottom Up Testing na one approach to integrated testing wey dey start from the lowest level components (modules, procedures, and functions) before e go integrate and use am test higher level components. After the integration testing of lower level integrated modules, the next level of modules go dey formed and fit be used for integration testing. The process go dey repeat until the components wey dey the top of the hierarchy don test finish. This approach dey useful only when all or most of the modules of the same development level dey ready. This method also dey help to determine the levels of software wey don develop and e dey make am easier to report testing progress in the form of a percentage. 