Describe each stage of the design process

Describe each stage of the design process.
Define the problem:
Finding an idea for your engineering project requires you to identify the needs of yourself, another person, or a group of people. The act of looking at the world around you to identify these needs is called need finding. Before moving forward with an idea for your engineering project, be sure to evaluate your problem.
Do background research:
Background research is especially important for engineering design projects, because you can learn from the experience of others rather than blunder around and repeat their mistakes. There are a few things to be able to tick off. Identify questions to ask about your target user or customer. Identify questions to ask about the products that already exist to solve the problem you defined or a problem that is very similar. Plan to research how your product will work and how to make it. Network with other people with more experience than yourself: your mentors, parents, and teachers.
Specify Requirements:
Design requirements state the important characteristics that your design must meet in order to be successful. One of the best ways to identify the design requirements for your solution is to use the concrete example of a similar, existing product, noting each of its key features. To complete the requirements step of the design process, you should write a design brief; a document that holds all of the key information for solving your problem in one place. Design requirements state the important characteristics that your solution must meet to be successful.
Brainstorm Solutions:
Good designers try to generate as many possible solutions as they can before choosing one that they feel is the best. This creative process of developing ideas is called ideation.
Methods of ideation include:
• Examining existing solutions
• Creating and using analogies
• Conducting brainstorming sessions
• Sketching and doodling
Choose the Best Solution:
First, look at whether each possible solution met your design requirements. Consider solutions that did a much better job than others, and reject those that did not meet the requirements. If your requirements and solutions are relatively simple, you can sometimes just list the pros and cons for each solution. Pros are good things about a solution and cons are bad things.
Develop the Solution:
Development involves the refinement and improvement of a solution. Some development work might be needed very early in the design process in order to evaluate different potential solutions. For example, it might not be possible to compare the cost of early design concepts without doing some development work to estimate what the cost of an alternative would actually be. Development work continues throughout the design process, often even after a product ships to customers.
Build a Prototype:
A prototype is an operating version of a solution. Often a designer makes a prototype with different materials than the final version, and generally it is not as polished. Prototypes are a key step in the development of a final solution, allowing the designer to test how the solution will work and even show the solution to users for feedback. Occasionally, designers will prototype pieces of the final solution very early in the design process. Sometimes designers will make several prototypes during the development of a solution.