جواب سوال درسته 

Bottom-Up Design Model 
 

In this design, individual parts of the system are specified in detail. The parts are linked to form larger components, which are in turn linked until a complete system is formed. Object-oriented language such as C++ or java uses a bottom-up approach where each object is identified first.

بخش‌های مختلف پروژه با جرئیات کامل میان، و برعکس همین در شئ گرایی از Top down هم استفاده میشه