In anticipation of the Tokyo Olympics, Japan is attaching importance to create an attractive sightseeing region. As one method to activate sightseeing by utilizing local regional resources, open data promotion is currently paid attention. However, there are many local governments that have not started to open data promotion because they are concerned that their work load will be increased and they have no idea about its needs since there are still few utilization cases of open data. The purpose of this study is to open data promotion at autonomous works, and an open data promotion of sightseeing event information by co-operating with local government was conducted. Regarding open data promotion that was conducted, this study worked on converting information that local government has kept so far, to open data, developing event guide application by utilizing it, and revealing its usefulness by a demonstration experiment.

As the concept of open innovation becomes more widespread, the resolution of societal issues through collaboration with various entities is also required with the promotion of open data in tourism. However, there are only a few local tourism associations that are currently collaborating with each other, and hardly any attempts have been made to turn the citizens' rich knowledge and information of tourism into open data sets. In this study, it was attempted to create open data sets using citizens' tourism information to promote tourist attractions. In this paper, the promotion of open data through citizen collaboration, including volunteer tour guides, and the creation of open data sets of tourism information provided by tourists will be discussed.

Regional activation highlights the importance of activities led by residents, a concept which has recently been gaining ground. These activities may solve regional problems that residents have through cooperation. "Regional vitality" has the power to solve these problems. Since a large number of residents need to cooperate to boost regional vitality, a society requires a system through which residents can share information. This paper puts forward the concept of a web community for boosting regional vitality. By using and customizing an open source CMS, it is possible to build a web community similar to existing social systems. In the community, residents can not only share information about activities in the real world, but they can also share this information and publicize these activities more widely on the web.

Recently, local revitalization has become an important issue. Activities to promote tourism, a comprehensive local force, are increasing most significantly. Because dissemination of tourism information is important in attracting tourists, open data is now gathering attention as a means of providing information. In this study, we propose a local PR model for providing tourism information in the form of open API, intended to disseminate tourism information through the content created using the open API. We converted the actual tourism information of Seto, Aichi Prefecture, into open data, in order to create various content using the resulting API; the proposed model was proven to be useful. We also reviewed some issues involved in providing open data, which were found during the process of creating the trial content.

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