The Definitive Guide to Sharepoint Migration Planning

If I've learned anything in more than a decade of working with SharePoint, it's that migration is more than moving bits between servers. When I joined Microsoft back in 2006, my organization was tasked with creating a hosted version of the SharePoint platform (now part of Office 365), but we were also responsible for the vast majority of SharePoint deployments internally at the company, including migrations.
We came to understand that the most important part of any migration is the preparation — clean up your content, information architecture and change management processes before you begin to migrate anything, and not only will your migration go more smoothly, but you will have a healthier system going forward, which will dramatically reduce both risk and support and maintenance costs.