Commercial software has conventionally been used for the operating systems and middleware of many infrastructure systems, including expressway toll collection systems, from the viewpoint of ensuring the stable operation and long-term maintenance of such systems. In recent years, however, there has been a growing need for the replacement of commercial software with open-source software (OSS) in response to the introduction of various new services as well as the changes that taking place in the public administration and business environments. It is necessary to address a variety of issues in this regard, including migration costs, quality assurance, and long-term operation and maintenance.
To resolve these issues, Toshiba Infrastructure Systems & Solutions Corporation has been engaged in the development of a method using migration tools to swiftly and efficiently implement migration from commercial software to OSS for expressway toll collection systems while making use of a system’s existing assets. We have confirmed the effectiveness of this method through trial migrations of applications and data from conventional commercial software to PostgreSQL, an open-source relational database management system, using three types of migration tools.