Naoshi Uchihira Yuji Kyoya Sun K. Kim Katsuhiro Maeda Masanori Ozawa Kosuke Ishii Analysis and Design Methodology for Product-Based Services. 13-25 2007 JSAI http://dx.doi.org/10.1007/978-3-540-78197-4_3 conf/jsai/2007 db/conf/jsai/jsai2007.html#UchihiraKKMOI07