Moving to the cloud for some of the services you provide today is a major shift in how you manage both your infrastructure and users. The key item to focus on when moving to the cloud is what type of experience you choose to provide your users with, whether it's migrating from Exchange and preventing a new download of cached mail, or seamlessly authenticating from SharePoint Online while navigating to SharePoint on-premise. To provide this experience, you need to enable some of the core integration options provided by Microsoft Online. The topics covered in this chapter include:
Directory Synchronization
Active Directory Federation Services (ADFS)
Exchange Hybrid
Non-Exchange messaging systems