Establishing design requirements and conducting requirement analysis is one of the most important elements in the design process, and this task is often performed at the same time as a feasibility analysis. The design requirements control the design of the product or process being developed, throughout the engineering design process.
These include basic things like the functions, attributes, and specifications – determined after assessing user needs. Some design requirements include hardware and software parameters, maintainability, availability and testability.
The preliminary design, or high-level design often bridges a gap between design conception and detailed design, particularly in cases where the level of conceptualization achieved during ideation is not sufficient. During this process, the overall system configuration is defined and schematics, diagrams and layouts of the project may provide early project configuration.
During detailed design and optimization, the parameters of the part being created will change, but the preliminary design focuses on creating the general framework to build the project on.
Design for Manufacturability
Design for manufacturability (DFM) is the general engineering art of designing products, taking the following aspects into consideration:
- Operating parameters
- Operating and non-operating environmental stimuli
- Test requirements
- External dimensions
- Maintenance and testability provisions
- Materials requirements
- Reliability requirements
- External surface treatment
- Design life
- Packaging requirements