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Recently, science and technology are expected to improve service industry productivity because many existing services are thought to be provided less efficiently than manufactured products (Sako, 2006). Service engineering is a new research field to support actual services by integrating academic disciplines such as engineering, computer sciences, human sciences, and social sciences (Kimita et al., 2008, Shimomura et al., 2008, Spohrer & Maglio, 2008, Ueda et al., 2009). For the promotion of service productivity, both streamlining service operations and enhancing values for customers are necessary. Therefore, service engineering focuses on various topics such as optimization of service provision, elucidation of customer satisfaction and value co-creation among stakeholders (Cronin et al., 2000; Moller, Rajala, & Westerlund, 2008; Shimomura, Hara, & Arai, 2008; Spohrer & Maglio, 2008; Takenaka & Ueda, 2008; Ueda et al., 2008; Voss et al., 2008).
From 2007 for instance, the Japanese Ministry of Economy, Trade and Industry started a national project promoting service engineering to improve service sector productivity (Japanese Ministry of Economy, Trade and Industry, 2007). The Japan Productivity Center also established Service Productivity and Innovation for Growth (SPRING) in 2007 (Morikawa, 2008).
Restaurant industry is one of the biggest service industries from the viewpoint of workforce in many countries. On the other hand, it has been less scientifically-studied than manufacturing industries because it includes many human factors of employees and customers. Now, the service management of a restaurant is a good research target for service engineering because both streamlining service operations and enhancing values for customers are needed to enhance the service productivity.
In Japan, the industrialization of restaurant businesses generally started in the 1970s. Up to that time, restaurant businesses were mainly family run. As the market scale of restaurant businesses increased, some restaurants started to introduce chain store systems. In addition, large restaurants were introduced to increase productivity. Consequently, the market scale of the restaurant industry in Japan increased from approximately 8,000 billion Yen (90 U.S. billion dollars) to 250,000 billion Yen (2.8 trillion U.S. dollars) during the 1970s – 1990s. In the latest report, approximately 737,000 restaurants were operating in Japan in 2006 (Japanese Ministry of Internal Affairs, and Communications, 2006). The increase of restaurant markets also brought severe competition among companies. Nowadays, restaurants must improve service operations and to reduce costs. However, provision of services in large restaurants is more difficult than in small restaurants. As chain stores expand, it becomes more difficult to educate staff members to learn high-skill services.