This White Paper recommends priorities for Directory standardization based on a survey of members of the Directory Interoperability Forum of The Open Group. Directories form a critical part of the infrastructure necessary to support an enterprise's information and communications services and to conduct e-business. Organizations often need to integrate directories from multiple vendors. This requires the directories to be based on open standards. However, some problems currently exist in the area of directory standardization. There are a number of different bodies each developing directory related standards. There is a wide range of potential areas for directory standardization, some of which are being actively progressed, some which have been started but have stalled, and some which have simply not been undertaken yet. This White Paper will help the standards community address these problems.