- 1 - Services and mobility : the PLASTIC answer to the Beyond 3 G challenge

We present the approach of the IST FP6 project PLASTIC to the effective design and implementation of mobile services over B3G environments. The PLASTIC methodology for service design is based on transformations which are iteratively applied to various models used at specific design stages. Starting from a conceptual model, these models reflect characteristic properties of the mobile service under development like for instance resource-awareness, context-awareness, security features and Service Level Agreements (SLAs). The implementation of the service featuring the above properties is supported by the PLASTIC middleware which comprises a set of constituents for efficiently implementing the service models over B3G environments. Besides the modelling and middleware support for implementing a service, PLASTIC also supports a rich environment for testing (online and offline) and monitoring the service execution, thus significantly simplifying the mobile services development cycle. 1 Mobile Services and the PLASTIC Platform Approach