Human-centred design is based on a continuous dialogue between potential users and the designers of the system. The best results are obtained when usability and the user's perspective are fully acknowledged right from the beginning of the design process. The starting point for human-centred design is in knowing the future users and identifying the most important situations of use. This makes it possible to ensure ease of use and usefulness of the product or service.

Reduced development costs: the overall development time and costs can be reduced by avoiding over-design and reducing the number of late changes.

Reduced support costs: easy-to-use systems require less training, less user support and less maintenance.

Reduced operating costs: systems better matched to the users' needs improve productivity and the quality of user's actions and decisions.

Improved product quality: human-centred design helps bring more competitive, high-quality products into markets which keep demanding more usable systems.