A Broker-Based Architecture for Quality- Driven Web Services Composition using a Hybrid Genetic Algorithm

Web services are popular framework for integrating distributed applications and enterprise business processes by individual service components. Several system issues must be considered when integrating distributed Web services into a business process. Web service composition consists of combining web services to offer more complex services. The QoS driven broker based architectures are used for the selection of web services that satisfies the QoS requirements (QoS constraints) of consumers. In the web service selection there might be some web service implementations that are dependent on each other. The web service selection will be better if we also consider those constraints during web service selection. This paper proposes a broker based architecture for quality based web service composition that takes into account the mutual constraints between the web service implementations