A data model for managing identity and access management (IAM) data implemented at an electronic database may include a set of logical resource elements, a set of physical resource elements, and a set of access requests elements that respectively model logical resources, physical resources, and access requests received at an access request manager of an enterprise. The physical resource elements may be respectively associated with the logical resource elements such that access rights for the physical resources may be obtained based on a logical resource specified in the access request. A system for managing IAM may include a mapping module configured to transform heterogeneous IAM data provided by a plurality of IAM data sources into homogeneous IAM data formatted according to the common IAM data format. A data store may implement the IAM data model such that the data store is configured to store the homogeneous IAM data.