In the design development phase, which of the following tasks is performed?

In the design development phase, the primary focus is on refining initial concepts into detailed designs that are ready for implementation. This includes estimating costs and preparing the final design, which are crucial tasks in this phase. During this stage, designers take earlier sketches or proposals and develop them into comprehensive plans that incorporate aspects such as material selection, construction methods, and overall aesthetics. This detailed preparation ensures that the design is feasible, aligns with the client's needs, and meets budgetary constraints.

By accurately estimating costs, designers can identify potential financial challenges and make adjustments accordingly, ensuring the project remains viable and on budget. Preparing the final design involves finalizing specifications and making revisions based on client feedback received in earlier meetings, which helps to confirm that the design is fully aligned with the client's vision and practical requirements before moving into execution.

While creating rough sketches, conducting initial client meetings, and finalizing the project schedule are important activities, they generally occur in earlier phases of the design process or in project planning rather than in the design development phase.