Supporting business services through Web service compositions (WSC) as part of service-oriented architectures (SOA) involves business performance monitoring requirements. Their implementation results in additional development activities. To support these activities, we already contributed a model-driven approach to the development of monitored WSC as part of our preliminary work. In this paper, we present an extension to this approach, which focuses on supporting the specification and transformation of indicators to an executable implementation. To reduce development effort for this particular task, we provide a template-based mechanism for defining performance indicators. In combination with our preliminary work, now fully monitored WSC can be generated automatically from platform-independent design models. We demonstrate the applicability of the overall approach by instantiating an integrated development process for a target platform based on IBM SOA products and showing its application for a sample business process along with monitoring requirements.