Abstract
Because of the diversification of customer needs, value creation process with goods-dominant logic (i.e., supply chain) is limited to fulfil customer satisfaction. The purpose of this paper is to elaborate the mutual value exchange between company and customer under the service-dominant logic (i.e., value co-creation). Using the concept of value constellation and a method of goal-oriented requirements engineering called i∗ (i star), value co-creation process is refined by modelling value proposition and integration of resources by each company and customer.