The data entry operators at Melanie Julian 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 that have been classified into two classes: fireproof and fire resistant? Respond in a paragraph.

d. Some of the materials coded in Problem 4a. above (natural wood siding, brick, shake shingles, and EZ color-lok enameled Masonite) are being used in innovative ways for scenic design for stage plays by some of the consultants for Melanie Julian Construction. Develop a code for the residential products you coded in 4b. above so consultants will recognize that they can be used on stage for scenic design as well.