XAF
Xml Automation Framework (XAF) is an XML based automation framework
...The core logic is thus embedded into XML which will delegate the actions to any 3rd party plugins.
Apart from this, TCP/IP packets can be crafted seamlessly in XML's. As a result, any type of network flows can be simulated. The packets can be sent over a real/virtual network interface OR dumped into pcap file for further analysis.
Originally designed for networking(datacom)/telecom testing applications, this tool can be expanded to other applications as well.