The data entry operators at Michael Mulheren Construction have been making errors when entering the codes for residential siding products, which are as follows: U = stUcco, A=Aluminum, R = bRick, M = Masonite, EZ = EZ color-lok enameled masonite, N = Natural wood siding, AI = pAInted finish, SH = SHake SHingles. Only one code per address is permitted.
a. List the possible problems with the coding system that could be contributing to erroneous entries.
b. Devise a mnemonic code that will help the operators understand what they are entering and subsequently help their accuracy.
c. How would you redesign the classes for siding materials? Respond in a paragraph.