UDDI has been widely accepted by the developer community as a means to list and integrate XML web services. Unfortunately, UDDI is still viewed as a yellow pages web service directory. This leads to the belief that UDDI can only be used at design time as a look up mechanism. However, UDDI's greatest value is as a runtime execution model. This article by Chris Peiris exlores this concept and shows you how it can work to your advantage.