Abstract
In participatory planning, it is important to call the public for information input and to enhance the quality of information through public discussions. In fact, the application of Internet mapped information board system is becoming popular as one of the public participation tools. This paper identifies the characteristics of collected and accumulated information and discussion development through the analysis of information postings in the case of e-Community Karte application to the update of the Mitaka City Comprehensive Plan. The authors conclude that 1) the nature of information varies according to the method of posting and the postings complement each other both in quantity and quality, and 2) the postings with positional information tend to be more concrete and the discussions of high quality are developed in relation to space.
