There are several checks which need to be performed before commencing the original (real-time) SharePoint migration (either from file servers or SharePoint) to minimize the errors during migration and make the migration successful and on time.
"We find that Dockit is an extremely valuable tool for migrating intranet content to SharePoint Portal Server. When you are faced a large number of documents to migrate each of which has to be populated with metadata, Dockit reduces considerably the effort involved in publishing information. Typically it reduces the time a user has to spend per document by 75%, by enabling documents to be published in batch mode rather than real time through the standard SPS interface."