sPAC (Web Services Performance Analysis Center): Performance Analysis and Estimation Tool of Web Services. - Hyung Gi Song; Kangsun Lee (Business Process Management, 2005)

Metrics, Methodology, and Tool for Performance-Considered Web Service Composition. - Hyung Gi Song; Yeonseung Ryu; Tae-Sun Chung; Wooseok Jou; Kangsun Lee (ISCIS, 2005)

(Web Services Performance Analysis Center): A Performance-Aware Web Service Composition Tool. - Hyung Gi Song; Kangsun Lee (WAIM, 2005)