Each object — host, server, table, column — and each relationship between objects can be valid or invalid in the context of an Enterprise data movement model (EDMM). Set model properties
When you validate an EDMM, you apply rules to each object and object relationship in the EDMM. If each object and each object relationship meets the requirements of each rule, the EDMM is valid. When an EDMM is valid, you can commit it.
When an EDMM commits successfully, you can begin distributing data. See Start monitoring And control of your model.