Service provisioning network element, related user terminal and related software modules

The service provisioning network element, provides a service in a communications network to a user, either via an associated user terminal or via an additional network element of the communications network. The service is realised by means of a plurality of software components and the service provisioning network element is able to receive a request for sending at least one software component of the plurality of software components to the user and to subsequently fetch this at least one software component from a component storage means wherein this plurality of software components is stored. These fetched software components are sent to the associated user terminal or to the additional network element. The user terminal that invokes the service from the service provisioning network element in the communications network is able to detect if a software component is missing at the user terminal and then requests the service provisioning network element to send this software component. Subsequently the software component are received and installed at the user terminal. Additionally, the service provisioning network element may also be able to detect if a software component is missing at the associated user terminal or at the additional network element.