Monsur Ahmed

Fitness Engineer

Product Design & development is the process of creating a new product to be sold by a business or enterprise to its customers.

Design refers to those activities involved in creating the styling, look and feel of the product, deciding on the product's mechanical architecture, selecting materials and processes, and engineering the various components necessary to make the product work.
Development refers collectively to the entire process of identifying a market opportunity, creating a product to appeal to the identified market, and finally, testing, modifying and refining the product until it is ready for production.
The Development process is vital and the considerable things are –

Identify customer needs
Establish target specifications
Generate product concept
Refine specifications
Perform economic analysis
Analyze competitive products

System level design, the task of designing the architecture of the product, is the subject of this stage. In prior stages, the team was focused on the core product idea, and the prospective design was largely based on overviews rather than in-depth design and engineering.
Detail design, is the stage wherein the necessary engineering is done for every component of the product. During this phase, each part is identified and engineered. Tolerances, materials, and finishes are defined, and the design is documented with drawings or computer files. Once the database has been developed, prototype components can be rapidly built on computerized machines such as CNC mills, fused deposition modeling devices, or stereo lithography systems.

Testing and Refinement, in this stage, a number of prototypes are built and tested. Even though they are not made from production components, prototypes emulate production products as closely as possible.
Production ramp-up, during this, the work force is trained as the first products are being assembled. The comparatively slow product build provides time to work out any remaining problems with supplier components, fabrication, and assembly procedures.
Models and Prototypes, the terms prototype and model are often used interchangeably to mean any full-scale pre-production representation of a design, whether functional or not. I prefer to use the term model to describe a non-functional representation and the term prototype to describe a functional item. An appearance model is a full-scale, non-functional representation that looks, as closely as possible, identical to the prospective new product. Modeling and prototyping serve a variety of purposes throughout the development effort.
Designers when develop a new product, Dreyfuss (1967) listed five goals –

Utility: The product's human interfaces should be safe, easy to use, and intuitive. Each feature should be shaped so that it communicates its function to the user.
Appearance: Form, line, proportion, and color are used to integrate the product into a pleasing whole.
Ease of Maintenance: Products must also be designed to communicate how they are to be maintained and repaired.
Low Costs: Form and features have a large impact on tooling and production costs, so they must be considered jointly by the team.

Communication: Product designs should communicate the corporate design philosophy and mission through the visual qualities of the products.