Abstract
When creating a deck for a trading card game, cards are selected based on the players’ strategy. If the players do not know the name of the card, they usually use the card search system. It is difficult for beginner players to use the existing card search site because the search depends on technical terms. In this paper, we constructed a card search system that allows beginner players to search cards even if they have ambiguous information needs. We constructed a database with 1,181 cards with 7 attributes prepared as search facets and applied it our ring-structured graphical search interface. Intuitive and flexible search is provided by simple ring operation. Users can add, delete and adjust search keys by adding, deleting and rotating rings. We performed a usability test comparing an existing card search site with 36 participants. The result reveled the proposed system allowed users with ambiguous information needs to search efficiently and accurately.
