Let us suppose, for the heck of it, that at one time or another you went for the purchase or were delegated with the responsibility to make a purchase of a dress or shirt for a loved one; you would also love to see this relative in a smashingly hot dress.

There is all kinds of us: the massif, skinny and others still wearing a size somewhere within the upper and lower bounds of the size spread. You also happen to know your loved one’s taste.

You go to a sophisticated store to execute this purchase. By sophisticated, I mean one with a large selection of similar items of different sizes, design and color.

So now you’ve found the spot where what you are looking for is likely be. Eventually, you find just what you want; one that will be precisely your loved one’s fitting.

You are an engineer. 1st you conceive a beautiful thought – buying or being delegated with the responsibility to buy a nice dress for a loved one; but until you see a great selection of the item, you cannot narrow your choice to the precise fitting of your loved one. As the selection is made, it is fine tuned to meet your loved one’s needs, size, color and style.

The DID is the rough look into what is to be designed in accordance with the customer’s input.

The DSD is being precise with the customer’s input based on the company’s engineering capabilities.

Advantages and disadvantages of DSD and DID may not be compared as they are made to serve different company operational needs.