Towards Context-Aware Service Discovery : A Case Study for a new Advice of Charge Service

It is already possible to discover and consume numerous network-based services with different kinds of devices. However, selecting the most favorable service among a set of appropriate services to solve a specific task can become complex and time-consuming for the user. In such situations, interaction between the user and the device should be minimal for the sake of user convenience. Here, context-aware service discovery can support the selection process through automated filtering based on the actual context. To demonstrate the feasibility of such kind of service discovery, this article describes our case study for a new kind of Advice of Charge (AoC) in the domain of mobile telecommunication. In contrast to existing AoC solutions, we investigate how context information can be used to automatically choose the most appropriate network operator prior to placing a call (AoC-P). Index Terms — Advice of Charge, Roaming, Context-Aware Service Discovery