Interactive contract manufacturing is when a company hires another company to make things for them. Think of it like when you ask someone else to make a toy for you because you don't know how to make it yourself.
In this case, the company that is making the toy for you is called a contract manufacturer. But interactive contract manufacturing is a little different than just regular contract manufacturing.
With interactive contract manufacturing, the company you hired to make your toy works with you very closely to make sure the toy is exactly how you want it. They might ask you questions like "What color do you want the toy?" or "What kind of material do you want it made of?"
They might show you different options and let you choose which one you like best. They might even let you test the toy to make sure it works the way you want it to.
The goal of interactive contract manufacturing is to make sure that the product you end up with is exactly what you had in mind. It's like having your own personal toy-making expert who helps you create the perfect toy.