Title	Transient Detection for Speech Coding Applications
Author	Grzegorz Szwoch, Maciej Kulesza, Andrzej Czy?ewski
Citation	Vol. 6  No. 12  pp. 320-325
Keywords	speech coding, transient detection, VoIP applications, signal processing

Title	Vulnerability Analysis through a Graph-based Protection System
Author	Mohammad Ebrahim Rafiei, Rasool Jalili, Hamid Mousavi
Citation	Vol. 6  No. 12  pp. 311-319
Keywords	Vulnerability Analysis, Protection System, Safety Problem, NP-Completeness.

Title	A Model-Oriented Dynamic Architecture and Its Supporting System
Author	Yang He-biao, Zhang Jian-ming, Zhan Yong-zhao
Citation	Vol. 6  No. 12  pp. 304-310
Keywords	Model, Software architecture, Dynamic evolution, Framework

Title	Interoperability Mechanisms for Registration and Authentication on Different Open DRM Platforms
Author	Carlos Serr?o, Victor Torres, Jaime Delgado, Miguel Dias
Citation	Vol. 6  No. 12  pp. 291-303
Keywords	DRM, interoperability, security, registration, authentication