The Service-Oriented SLA Management System Development in the VPN Service. - Hyun-Chul Kang; Il-Gu Jung; Eun-Jin Ko; Ho-Young Song (CAINE, 2008)

The Design and Implementation of Profile Management Module Including Policy-Based Repository in the Customer Network Management System for Corporate-Level Network Service Clients. - Eun-Jin Ko; Il-Gu Jung; Gilhaeng Lee (ICSNC, 2008)

Voice quality measurement system for telephone service. - Il-Gu Jung; Eun-Jin Ko; Hyun-Chul Kang; Gilhaeng Lee (CSTST, 2008)

Design and implementation of the sensory effect Aggregator for providing the real-sense 4D Broadcasting Services. - Eun-Jin Ko; Mi-kyung Han; Sangwook Park; Jong Hyun Jang (ICTC, 2012)