Cloud integration can be thought of as one additional step beyond the approach for ESB integration where instead of usung using the ESB to wrap and present host supported business services aligned to the Service Domain partitions, the services themselves are provided directly by cloud resident service domain aligned capabilities (as containers or virtual machines). The Service Domain roles also provide the basis for defining ‘constrained’ access to the services as described in the BIAN paper – – Cloud Enabling the Banking Industry (available at BIAN.org).