This is what I understand from Eric's explanation. It is just a table, on the first column of each row, you put in various designs. On the first row of each column you put in design consideration. Each matrix m_ij element tells you if the design i satisfies issue j or not. The best design satisfy most requirements, and it will be easy to see.

For PMC design, I put the value from each design in each matrix element. I'll change font color to blue to show if the number in the matrix element satisfy our condition.