To date many general procedural models to formulate the design process and
to assess the quality of design have been described by industrialists and r
esearchers. Despite similarities, all suggested methodologies contain vario
us types of information that provide few possibilities for practitioners to
consider users' reactions towards product attributes. Therefore, in practi
ce and in a majority of cases, designers and manufacturers, while deploying
huge investments in research and development in product design, are still
bemused by the complexity of preferences by customers. The model presented
in this paper, Customer Optimization Route and Evaluation (CORE), addresses
the need for interactions between design and market needs. A method to tra
nslate customers' qualitative requirements into design technical attributes
is introduced in CORE. Cutomer's satisfaction level for each product attri
bute is then evaluated, offering guidelines to designers for improvement in
product design. This model is applied to a real example in the service ind
ustry offering Intranet services. Results of the study are analysed and pro
posals are given to improve the present product.