· Research: Researching market trends, new techniques, and period styles Design: Creating new designs or improving existing ones, and producing technical drawings Materials: Selecting materials and working out their costs, practicality, and availability Prototyping: Testing ideas using models, prototypes, and computer-aided design (CAD) Production: Working with manufacturers on the production process Client communication: Discussing designs with clients and manufacturers Collaboration: Working closely with other professionals, such as production managers, marketing staff, and designers Liaison: Liaising with craftsmen or production department staff Evaluation: Evaluating issues such as pricing and fixing costs