Distributed feature composition
Distributed Feature Composition ( DFC ) is an architecture for describing and implementing telecommunication services in computer and telecommunication technology. A main goal of the DFC is to ensure the modularity of performance features in telecommunication systems in order to counteract the problems of the interaction of individual performance features.
Performance characteristics and their interaction
In this context, performance features are understood to mean individual functional units of a service that are sometimes optionally activated by the user. Examples of performance features in mobile telecommunications are voicemail or calling line number suppression (CLIR). More examples of performance features can be found in the extensive list of switching performance features . An interaction of performance features always occurs when one performance feature influences another. A configuration is conceivable in which a voicemail function is activated when a subscriber with activated CLIR wants to connect to the recipient: Voicemail and CLIR interact. Problems can arise during the interaction: for example, if a participant uses two performance features in parallel that respond to the same signal tones , this can lead to signal overloading and thus to malfunction in the overall system.
literature
- Michael Jackson, Pamela Zave: Distributed feature composition: A virtual architecture for telecommunications services , IEEE Transactions on Software Engineering XXIV (10): 831-847, October 1998 PostScript PDF
- Michael Jackson, Pamela Zave: The DFC Manual , AT&T Technical Report, November 2003 PDF
- Gregory W. Bond, Eric Cheung, K. Hal Purdy, Pamela Zave, J. Christopher Ramming: An open architecture for next-generation telecommunication services , ACM Transactions on Internet Technology IV (1): 83-123, February 2004 PDF