nabc sounds good, but i might be inclined to augment it with a "d" that being "disadvantages" in addition to "advantages"

too many times engineers dont think clearly about the negatives of an approach/proposal (every idea has a negative or disadvatageous aspect) and people should go into a proposal with both eyes open

i cant count how many proposals i have seen that have only mentioned advantages and "alternative" approaches similar to the proposed ones...