Specification, detection and resolution of IN feature interactions with Estelle.
Jan Bredereke, Reinhard Gotzhein · 1994
We present an approach for the treatment of Feature Interactions in Intelligent Networks (IN). It is based on the formal description technique (FDT) Estelle and consists of three steps. 1) A specification style supporting the integration of additional features into a basic service is introduced. 2) Feature interactions are detected which result from the integration of additional features (before their deployment). 3) Previously detected feature interactions are resolved. We emphasize that these three aspects interfere and therefore have to be treated together. In particular, the FDT and the specification style have a strong influence on the detection criteria and on the resolution of feature interactions. Several authors have proposed classifications of feature interactions in telecommunication systems. In [DaNa93], a distinction is made between technical interference and policy interference. Te