4. Why CADD??? Years before ,till about a decade ago people adopted to manual drafting using Drawing boards, Charts, Drafters and Set squares And designing a product was highly difficult job.
5. And with increasing customer expectations and highly competitive environment companies needed to be more productive. But how!!!!!
6. COMPUTERS !!! YES THEY ARE!!! PRODUCTIVE COMPUTERS BECAME A PART OF ENGINEERING INDUSTRY NOW GLOBALLY 98% OF THE COMPANIES ARE RE-ENGINEERING AND DESIGNING THEIR PRODUCTS WITH THE HELP OF COMPUTERS THATS HOW CADD WAS ADOPTED
7. Make modifications faster and easier Easy to duplicate Accuracy increases Good drawings created Easy to store E transmit drawings