WISE is a peer-reviewed International conferences series which has so far established a solid community which aims at high quality research work and it offers the ground for advancing and progressing efforts in Web information systems addressed topics and audiences. Previous WISE conferences were held in Hong Kong, China (2000), Kyoto, Japan (2001), Singapore (2002), Roma, Italy (2003), Brisbane, Australia (2004), New York, USA (2005), Wuhan, China (2006), Nancy, France (2007), Auckland, New Zealand (2008), Poznan, Poland (2009), Hong Kong, China (2010), Sydney, Australia (2011), Paphos, Cyprus (2012) and Nanjing, China (2013). The aim of this 15th edition of the conference series on Web Information Systems Engineering is to provide an international forum for researchers, professionals, and industrial practitioners to share their knowledge in the rapidly growing area of Web technologies, methodologies and applications.