Storm doors have been installed on $50\%$ of all homes in township area. The remaining $50\%$ of homeowners without storm doors think they may have a problem that a storm door could solve, but they$$re not sure. Refer to Figure Q$1($b$),$ briefly elaborate based on the engineering design process to help these homeowners systematically think through the definition of their need $($Activity $1),$ a formal statement of their problem $($Activity $2),$ and the generation of alternatives $($Activity $3)$

Figure Q$1($b$)(12$ marks$)$