FUJITSU. 63, 2, p. 193-199 03, 2012 193 あ ら ま し SDEM 30 SDEM SDEM 2 Abstract SDEM is a standard process that consists of comprehensively organized activities of information system planning, development, and operation and maintenance. SDEM provides a basis, which is a common frame, for various stakeholders including customers to build a common consensus for tasks and roles. SDEM has a history of ov