Final answer:
The step in the Design Process that includes the problem being identified, validated, and justified, along with determining the design requirements and creating the design brief is Define the Problem.
Step-by-step explanation:
The step in the Design Process that includes the problem being identified, validated, and justified, along with determining the design requirements and creating the design brief is Define the Problem. This step is crucial as it helps the design team understand the scope of the project and the resources available to solve the problem. It involves investigating the needs of potential customers, identifying constraints, and establishing a problem statement, criteria, and constraints.