Abstract
After the Great East Japan Earthquake in 2011, suffered local governments has become concerned about backup technologies of various data stored and used in their Information System (IS). In fact, some of them have already decided to introduce the local-government cloud system.
The primary purpose of this paper is to analyze why they introduce the local-government cloud system. We conduct on-site interviews and investigate the published official documents. We discuss whether their value for the IS, especially the local-government cloud system, has changed or not, why their value has changed, and how the change occurred.