Product Design Guidelines for Assembly--Proofing Design

• The parts only has the a correct position to assembly;

• It's better if error-proofing features is more obvious;

• Exaggerating the feature dissimilarity;

• Exaggerating asymmetry feature; the best the product does not need proofing design, completely symmetrical parts meet these requirements;

• Designed identify signature of error-proofing ; these signature including symbols, text and vibrant colors;

• The final choice: through the process to error-proofing;