Object-oriented design methodology based on functional layers for distributed communications systems

  • Authors:

  • Yasufumi Nagayama;Masashi Nabeta;Hiroshi Fujimoto;Atsushi Takeuchi

  • Affiliations:

  • Fujitsu Limited, Kawasaki, Japan;Fujitsu Limited, Kawasaki, Japan;Nippon University, Koriyama, Japan;Nippon University, Koriyama, Japan

  • Venue:
  • ECBS'99 Proceedings of the 1999 IEEE conference on Engineering of computer-based systems
  • Year:
  • 1999

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Abstract

Communications systems will have to support diverse services, which will lead to more complicated software within those systems. This will be a problem particularly because of the system's inability to meet required real-time constraints. This paper describes an object-oriented model based on functional layers for switching systems. Our model enables to improve the productivity, maintainability, and expandability of software while retaining its real-time capability of communications systems. To verify the effectiveness of the model. we implemented it on a computer and telephony integration (CTI) system, and provide the Voice over IP (VoIP) functions.