Goal oriented modeling methods are one of the promising approaches to elicit requirements. However, the difficulties in goal decomposition during requirements elicitation processes and a lack of the technique to utilize domain knowledge are obstacles to make them widely used in industry community. This paper proposes a method call GOORE where a domain ontology is utilized to support goal decomposition as domain knowledge to support goal decomposition. Although the experimental case study of feed readers suggested some points necessary to be improved, our approach can make goal oriented approach more powerful and more widely used.