Which phase in the Design Cycle focuses on creating detailed specifications and plans?

The Design Phase is where the focus is on creating detailed specifications and plans for a project. This phase is crucial as it establishes the framework and guidelines for what the final product should achieve. During this stage, designers translate the requirements determined in the earlier phases into concrete designs, outlining the materials, dimensions, systems, and technologies to be used. This detailed planning is essential to ensure that the project can move forward effectively, addressing all functional and aesthetic considerations defined earlier.

The Identify Phase primarily involves recognizing and defining the problem or need, setting the stage for understanding what the design should address but not yet delving into specifics. The Validation Phase takes place later, where the designs are checked against the requirements to ensure they meet the intended goals. Meanwhile, the Optimisation Phase generally focuses on refining and enhancing the design based on testing and feedback, rather than on creating the initial detailed plans. Hence, the Design Phase is the critical stage where detailed specifications and design plans are developed, making it the correct choice.