What choices did you face in developing your soution and how did you choose amoung them?

Today i had to make choices in how to implement a postfix. I also had to decuide how to implement the infix. Other choices I had to make were how to organize the information. I also had to decide how to describe the implementation of the infix vs postfixd based on postfix. Finding the diction for the implementation was dificult. I will be able to finish this task at lunch today.