Microsoft Identity Integration Server (MIIS) is an identity management (IdM) product offered by Microsoft. It is a service that aggregates identity-related information from multiple data-sources. The goal of MIIS is to provide organizations with a unified view of a user's/resources identity across the heterogeneous enterprise and provide methods to automate routine tasks. One of the goals of the identity management is to establish and support authoritative source of information for every known attribute and to preserve data integrity according to predetermined business rules.