While traditional Internet servers mainly served static and
later also dynamic content, the popularity of Web services
is increasing rapidly. Web services incorporate additional
overhead compared to traditional web interaction. This
overhead increases the demand on Internet servers which
is of particular importance when the request rate to the
server is high. We conduct experiments that show that the
imposed overhead of Web services is non-negligible
during server overload. In our experiments the response
time for Web services is more than 30% higher and the
server throughput more than 25% lower compared to
traditional web interaction using dynamically created
HTML pages