Final answer:
In design consultation, 'criteria and constraints' are your first reference when making decisions, starting with defining the problem and moving to idea generation and selection for implementation.
Step-by-step explanation:
In the hierarchy of design consultation, criteria and constraints are your first point of reference when making key decisions. When beginning the design process, the first step is to define the problem, which sets the foundation for all subsequent steps. After this, the design team proceeds to generate ideas based on the defined criteria and constraints.
Extensive research is critical and involves multiple aspects such as visual, technical, and historical analyses to make informed and effective design selections. Once possibilities are explored, selecting a design becomes the next crucial step wherein the best ideas are culled and slated for implementation. Flexibility during the realization phase is important as designers must refine their designs, communicate results, and stay open to evolving the project as needed.