Title :
Maintaining telephone switching software requirements
Author_Institution :
Bremen Univ., Germany
fDate :
11/1/2002 12:00:00 AM
Abstract :
We discuss how telephony software requirements should be structured to reduce maintenance costs. "Feature interaction" problems have become a serious obstacle to add more features to telephone switches. We show why existing public switched telephone networks are hard to modify. We then argue that a more modular, layered requirements architecture can help. Finally, we survey approaches for such an improved telephone switching architecture and discuss them.
Keywords :
electronic switching systems; software architecture; software maintenance; telecommunication computing; telephone networks; feature interaction; layered requirements architecture; maintenance costs reduction; modular requirements architecture; public switched telephone networks; software maintenance; telephone switches; telephone switching architecture; telephone switching software; Call conference; Cities and towns; Communication switching; Intelligent networks; Software maintenance; Switches; Telecommunication switching; Telephony; Terminology; Wire;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2002.1047001