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Operational Analysis of Virtual IP Multimedia Subsystem (IMS) Through a Model-Based Architectural Framework

  • Arevik GevorgyanEmail author
  • Peter Spencer
Conference paper

Abstract

Telecom/IT convergence is transforming network architectures and cost structures. Lack of methodological support within an equipment provider organization hinders heavily the possibility of efficient transitions from traditional monolithic to virtual architectures and their market insertion. For any evolutions, especially innovation, operational analyses have a vital importance. We propose to base our approach for a systematic operational analysis upon the following metaphors: (1) an adapted Architectural Framework (in our case, inspired by SAGACE), incorporated with (2) PESTEL (environmental) and subsequently FURPSE (software characteristics) analyses frames, (3) leveraging on Model-Based Systems Engineering. A common consistent language and format for structuring and relating system’s operational, functional and physical views allow handling in a holistic and integrated manner evolutions and complexities of the system and its environment throughout decisions spectrums and levels. We case study virtual IP Multimedia Subsystem (essential for communication services across networks). Identified operational invariants are inputs of critical importance for iterative functional and decisions trade-off analyses in accordance to market, technological and other perspectives.

Keywords

Network functions virtualization IP multimedia subsystem Operational analysis Complex systems architecture Architectural framework Model-Based systems engineering 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Laboratoire d’Informatique (LIX)École PolytechniquePalaiseauFrance
  2. 2.Strategy—IP PlatformsAlcatel-Lucent InternationalBoulogne-BillancourtFrance

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