1. Specification & Requirements: Identifying key functional and aesthetic requirements for a product, ensuring suitability for intended use, environmental considerations, and material properties.

2. Compact Storage & Joining Methods: Sketching and explaining mechanisms for reducing size when not in use, including folding, removable parts, telescopic structures, and various joining techniques.

3. Concept Development & Design Ideas: Generating multiple design solutions, illustrating variations, and including construction details to meet functional and aesthetic criteria.

4. Evaluation & Selection: Comparing design ideas by analyzing advantages and disadvantages, selecting the most appropriate design, and providing justified reasoning.

5. Technical Drawings & Construction Details: Producing final detailed drawings with clear dimensions, material specifications, and assembly methods to ensure feasibility.

6. Material Selection & Manufacturing Process: Choosing appropriate materials based on durability, aesthetics, and sustainability, and describing manufacturing processes with tools and equipment used.