When analyzing any product, there are several important criteria to consider such as its design, materials used, construction techniques, production process, ergonomics, aesthetics, intended function, finish, cost, safety aspects, quantity produced, and how it fits the target market and complies with relevant regulations. Specifically for the Dyson DC03 vacuum cleaner, key points that make it effective include its contemporary design, easy-to-empty and see-through waste container, removable and washable filters, flexible hose and accessible tools, ability to fold flat, self-ratcheting drive belt, use of color-coding, easily removable pipe unit, base flap valve, comfortable handle, and high efficiency even after years of heavy use