Ensuring quality and accuracy
Quality checks throughout the manufacturing ensure that the end product is functioning and successful. Quality checks to consider include:
- Does it meet all the statements in the design specification?
- Is it accurate in terms of:
- formRelates to the way that something looks, also called aesthetics. or aestheticHow something looks.
- correct assemblyAttaching or putting parts together to form a product.
- consistency between parts
- Does it have high-quality surface finishes?
- Does it function and perform correctly?
- Does it appeal to the user and is it easy to use?
- Is the choice of materials fit for purpose?
- Are the components suitable and functional? This can be tested in many ways, eg using multimeterAn electronic measuring instrument for voltage, current and resistance often used to find faults within circuits. and/or logic probesAn electronic measuring instrument that tests the logical states of a digital circuit to see whether a circuit is functioning correctly. to check that they produce the correct outputs within a circuit.

A quality control check in a factory
Designers may find that the quality and accuracy is not to an acceptable standard during the manufacturing process. This may mean that certain ideas, materials or processes need to be modified to create the desired outcome. This does not mean that the design has failed; it is part of the iterative design A cyclic design process of modelling and testing to achieve gradual improvements to the design. process to make a successful product.