1. Design of service systems under variability: research issues

   • P. K. Kannan
   • João F. Proença

   Original Article 18 January 2009 Pages: 1 - 11

   

2. Toward a ubiquitous personalized daily-life activity recommendation service with contextual information: a services science perspective

   • Chen-Ya Wang
   • Yueh-Hsun Wu
   • Seng-Cho T. Chou

   Original Article 29 January 2009 Pages: 13 - 32

   

3. The challenge of conceptual modeling for product–service systems: status-quo and perspectives for reference models and modeling languages

   • Jörg Becker
   • Daniel F. Beverungen
   • Ralf Knackstedt

   Original Article 03 February 2009 Pages: 33 - 66

   

4. A value-driven approach to the design of service-oriented information systems—making use of conceptual models

   • Oliver Thomas
   • Jan vom Brocke

   Original Article 27 February 2009 Pages: 67 - 97