what are some of the preliminary ideas and preliminary desig

what are some of the  preliminary ideas and preliminary design for a pen?

Solution

the idea for designing of a product aims for designing a better product from the exixting one,with better features and with a better economy. during the preliminary design the design concept is created which implement the requirement desired from the pen. the requirement could be better look,better grip, smooth writing, better cohessiveness between the pen and paper, proper ink flow, longer writing capacity for refil and economical.