1. An integration services network for facilitating access to one or more web services by a plurality of users having associated client machines, the network comprising: a central repository having a directory stored thereon which maps an identity for each of the users to a policy framework which defines access information relating to the one or more web services, the integration services network configured to facilitate messaging and mediate policy differences among the plurality of users and the one or more web services according to the policy framework, the one or more web services including a first web service; a translation engine configured to translate a first description of the first web service to a second description of the first web service, the first description describing how to connect to or communicate with the first web service using synchronous communications, the second description describing how to connect to or communicate with the first web service using asynchronous communications; one or more conversion engines configured to facilitate communications between a first client machine and the first web service, the one or more conversion engines configured to communicate synchronously with the first web service in accordance with the first description, the one or more conversion engines configured to communicate asynchronously with the first client machine in accordance with the second description.