期刊名称：Journal of Theoretical and Applied Computer Science
印刷版ISSN：2299-2634
电子版ISSN：2300-5653
出版年度：2012
卷号：6
期号：3
页码：50-57
出版社：Polska Akademia Nauk * Oddzial w Gdansku, Komisja Informatyki,Polish Academy of Sciences, Gdansk Branch, Computer Science Commission
摘要：Today, the list of telecom services, their functionality and requirements for Service Execu-tion Environment (SEE) are changing extremely fast. Especially when it concerns require-ments for charging as they have a high influence on business. This results in the need for constant adaptation and reconfiguration of Online Charging System (OCS) used in mobile operator networks. Moreover any new functionality requested from a service can have an impact on system behavior (performance, response time, delays) which are in general non-functional requirements. Currently, this influence and reconfiguration strategies are poorly formalized and validated. Current state-of-the-art approaches are considered methodolo-gies that can model non-functional or functional requirements but these approaches don’t take into account interaction between functional and nonfunctional requirements and col-laboration between services. All these result in time and money consuming service devel-opment and testing, and cause delays during service deployment. The balancing method proposed in this paper fills this gap. It employs a well-defined workflow with predefined stages for development and deployment process for OCS. The applicability of this novel ap-proach is described in a separate section which contains an example of GPRS service charging. A tool, based on this method will be developed, providing automation of service functionality influence on non-functional requirements and allowing to provide a target de-ployment model for a particular customer. The reduction of development time and thus nec-essary financial input has been proved based on real-world experiments.
关键词：OCS; service deployment; non-functional requirements; requirements balancing
