This is the creation of an improvement of a product that already exists.

Innovation.

Explanation:

In terms of creating a new product, there are two main ways that a business can choose to pursue:

- Inventions.

In this process, a business created a product that never existed before.

- Innovation.

In this process, a business created a product that already existed, but add several characteristics that make the product differ from the previous products.

The characteristics generally would be considered some sort of improvement from the previous products. A good example of this would be 5G connections. Which does not necessarily differ from the previous generations, Except that it's a lot faster than 4G.