Give two possible reasons why both engineers and scientists use a design process for their work

The design process are various steps used by engineers, scientists and architects to solve a variety of problems. The design process helps to break down a large project into achievable and smaller chunks. The steps of the design process include; define the problem, obtain information, analyze ideas, develop solutions, gather feedback and test and improve.

Two possible reasons why both engineers and scientists use a design process for their work is;

a- all cells come from pre-existing cells