Difference between publishing schema and publishing an orchestration as a WCF Service Publishing Schema as Endpoint Publishing Orchestration as Endpoint Orchestration Completing not require - publishing Schema as service will enable your subscribers get your Data Contracts and they can begin their development. Your subscribers don’t have to wait till you complete your business logic. Orchestration should be completed - Publishing an orchestration requires you to get ready with the Orchestration development at first place or let your subscribers wait till you finish your orchestration development. Orchestration will be loosely coupled- you are free to update/add new orchestration subscribing to specified message contract Orchestration will be tightly coupled – After updating/changing orchestration need republish the Endpoint. During publishing wizard, we need to select the schema and need to specify the request/response message. During Publishing wizard, we don’