Describe the conceptual design.

Conceptual design is the first stage that involves defining a concept.

Explanation:

In the conceptual design phase it is important to understand the needs, doing research and find out how to meet them defining models and plans. In this stage, you have to define the steps you will need to take to develop the design and identify the challenges you may face in order to be prepare.

Answer and explanation:

Conceptual Design or CD is the early stage of the design process where the general functioning and shape of the desired object are outlined. The CD's purpose is to come up with as many designs possible to eventually choose the one with the best working principles and structure.